JP3665468B2 - Self-luminous road sign device - Google Patents

Self-luminous road sign device Download PDF

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Publication number
JP3665468B2
JP3665468B2 JP02755298A JP2755298A JP3665468B2 JP 3665468 B2 JP3665468 B2 JP 3665468B2 JP 02755298 A JP02755298 A JP 02755298A JP 2755298 A JP2755298 A JP 2755298A JP 3665468 B2 JP3665468 B2 JP 3665468B2
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JP
Japan
Prior art keywords
power
self
external power
road sign
light
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JP02755298A
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Japanese (ja)
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JPH11222824A (en
Inventor
千城 武宮
威夫 山本
輝雄 中野
義也 藤下
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Sekisui Jushi Corp
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Sekisui Jushi Corp
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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/20—Illuminated signs; Luminous advertising with luminescent surfaces or parts
    • G09F13/22—Illuminated signs; Luminous advertising with luminescent surfaces or parts electroluminescent

Description

【０００１】
【発明の属する技術分野】
本発明は、太陽電池によって発生した電力を使用して発光体を発光させるようになされた自発光式道路標識体が用いられた自発光式道路標識装置に関するものである。
【０００２】
【従来の技術】
現在、道路には太陽電池により発光ダイオード等の発光体を発光させて、又は発光体と再帰反射性を有する反射体とを組み合わせて車両運転手や歩行者に警告や視線誘導等を行い、交通事故の防止を図る数々の自発光式道路標識体が路面や道路上等に設置されている。例えば、道路のセンターラインや交差点中央、停止線には、いわゆる自発光式道路鋲と称される自発光式道路標識体が路面や縁石上等に設置され、又道路側縁や中央分離帯等の道路上に立設された支柱やガードレール等には、いわゆる自発光式視線誘導標や自発光式標示板と称される自発光式道路標識体が設置されている。
【０００３】
【発明が解決しようとする課題】
ところがかかる自発光式道路標識体は、昼間の太陽光の照射によって発生した太陽電池の電力を蓄電装置に一旦蓄え、その蓄えた電力により夜間発光体を発光させていることから、昼間受けるべき太陽光の日射量が低いと、太陽電池の発生電力が低下して蓄電装置に蓄えられる電力も不足し、本来日没から夜明けまで発光体を発光させるべきところが、夜明けを待たずに消灯してしまう等、その機能を充分発揮できないことがある。例えば自発光式道路鋲においては、見通しが悪く交通上危険性の高い山間部の曲線道路に設置されることが多いが、かかる山間部では時間帯によっては太陽光が山に遮られる等して日陰になり、必要な電力に見合った日射量が得られにくいことがある。
【０００４】
従って、このような日陰になりやすい所では、予めそれを予測して日陰になっても必要な電力が得られるように大出力の太陽電池を搭載しておくか、設置をあきらめるしかなかった。また設置後に周囲に建物等が建設され、その建物等により太陽光が遮られるようになることも考えられ、かかる場合においても、大出力の太陽電池を搭載したものに設置しなおすか、設置をあきらめるしかなく、設置後に生じた電力不足に対して容易且つ迅速に対応することが困難であった。
【０００５】
そこで本発明は、上記の如き問題点を解消し、日陰になりやすい所に設置した場合において電力不足を解消することができ、又電力不足に対して容易且つ迅速に対応することのできる自発光式道路標識装置を提供せんとするものである。
【０００６】
【課題を解決するための手段】
上記目的を達成するために、本発明は次のような構成としている。
すなわちこの発明に係る自発光式道路標識装置は、太陽電池と、その太陽電池によって発生した電力を充電する蓄電装置と、充電された蓄電装置の電力により発光する発光体と、夜間に蓄電装置からの電力を発光体に供給し、発光体を発光させる制御回路と、前記太陽電池の電力と並列に外部電力を蓄電装置に入力することができる外部電力入力端子とを有し、外部電力入力端子に外部電源装置を接続することにより、太陽電池によって発生した電力に加えて外部電源装置からの外部電力も蓄電装置に充電することができるようになされた自発光式道路標識体の前記外部電力入力端子に外部電源装置が接続され、外部電源装置は、太陽電池と、その太陽電池によって発生した電力を出力する電力出力端子とを有し、外部電源装置からの外部電力が電力出力端子より前記自発光式道路標識体の外部電力入力端子に入力され、自発光式道路標識体の太陽電池によって発生した電力に加えて外部電源装置の電力もこの自発光式道路標識体の蓄電装置に充電されるようになされたことを特徴とするものである。
【０００７】
【０００８】
【０００９】
本発明による自発光式道路標識装置によれば、外部電力入力端子に外部電源装置を接続することにより、太陽電池によって発生した電力に加えて外部電源装置からの外部電力も蓄電装置に充電することができるようになされている自発光式道路標識体の前記外部電力入力端子に、太陽電池と、その太陽電池によって発生した電力を出力する電力出力端子とを有する外部電源装置が接続され、外部電源装置からの外部電力が電力出力端子より前記自発光式道路標識体の外部電力入力端子に入力され、自発光式道路標識体の太陽電池によって発生した電力に加えて外部電源装置の電力もこの自発光式道路標識体の蓄電装置に充電されるようになされているので、自発光式道路標識体を日陰になりやすい所に設置しても、同様に外部電源装置を設置することにより、自発光式道路標識体の太陽電池だけでは不足する電力が、外部電源装置の太陽電池による発生電力によって補われるために、電力不足を回避することができる。外部電源装置は充分な日射量の得られる所に設置するのが好ましいが、容量の大きな太陽電池を外部電源装置に用いれば、自発光式道路標識体と同様に日陰になりやすい所に設置してもよい。
【００１０】
【発明の実施の形態】
次に、本発明の実施の形態について図面を参照し、具体的に説明する。図１は本発明の実施の一形態を示す断面図、図２は図１の動作を示すブロック図である。
【００１１】
図面において、１は本発明に用いられる自発光式道路標識体であり、２は外部電源装置であり、この自発光式道路標識体１と外部電源装置２とから、本発明に係る自発光式道路標識装置が構成される。なおこの形態で示された自発光式道路標識体１は、いわゆる自発光式道路鋲と称されて路面に設置されるようになされたものであるが、本発明に用いられる自発光式道路標識体１及び自発光式道路標識装置は、この自発光式道路鋲に限定されるものではなく、太陽電池により発光体を発光させて、車両運転手や歩行者に警告や視線誘導等を行い、交通事故の防止を図るために道路や路面等に設置される道路標識全てを含むものである。
【００１２】
図面で示された形態の自発光式道路標識体１は、強度、耐蝕性及び成型性に優れたアルミニウムダイカスト等の金属や合成樹脂等からなる上部が開口されたケース本体１１内に、太陽電池１２と、逆流防止回路や過電流防止回路（いずれも図示せず）等を経て入力された前記太陽電池１２の発生電力を充電する鉛蓄電池や電気二重層コンデンサー等の蓄電装置１３と、蓄電装置１３からの電力により発光する発光ダイオード等の発光体１４と、夜間に前記蓄電装置１３からの電力を発光体１４に供給し、発光体１４を点滅発光させるための制御回路１５とが収容され、その上部にポリカーボネートやアクリル樹脂等の透光性合成樹脂や硬質の透光性ガラス等からなる透光体１６がケース本体１１の開口を塞ぐように冠着されているものである。そして透光体１６の表面がほぼ路面と同一面となるようにケース本体１１を路面に埋設することにより、発光した発光体１４の光が透光体１６を透過して路面より僅か上向きの仰角で外部に放出されるようになされている。
【００１３】
以上までの構成は、従来の自発光式道路鋲と変わるところはないが、本発明では外部電力入力端子１７を有している点において従来の自発光式道路鋲とは異なっている。すなわち前記太陽電池１２の電力と並列に外部電力を蓄電装置１３に入力できる外部電力入力端子１７が設けられ、外部電力入力端子１７に外部電源装置２を接続することにより、前記太陽電池１２によって発生した電力に加えて外部電源装置２からの外部電力も蓄電装置１３に充電できるようになされている。
【００１４】
外部電力入力端子１７に接続される外部電源装置２は、太陽電池２１と、その太陽電池２１によって発生した電力を出力する電力出力端子２２とから構成され、電力出力端子２２と前記外部電力入力端子１７とをケーブル３にて接続することができる。そしてかように接続することにより、外部電源装置２の太陽電池２１によって発生した外部電力が、電力出力端子２２より前記自発光式道路標識体１の外部電力入力端子１７に入力され、自発光式道路標識体１の太陽電池１２によって発生した電力に加えて外部電源装置２からの外部電力もこの自発光式道路標識体１の蓄電装置１３に充電させることができる。
【００１５】
この外部電源装置２は、前記自発光式道路標識体１と同様な施工ができるように、自発光式道路標識体１のケース本体１１とほぼ同様のケース本体２３内に太陽電池２１を収容し、太陽電池２１を保護すると共に太陽光を太陽電池２１に入射させることのできるように、その上部にポリカーボネートやアクリル樹脂等の透光性合成樹脂や硬質の透光性ガラス等からなる透光板２４を冠着したような形態が好ましい。
【００１６】
なお外部電源装置２に用いる太陽電池２１の容量については、日射量の低い所では経験的に通常の２〜３倍の電力が必要とされ、又日射量の充分な通常の所では一般的に２２０ｍＷ程度の電力を発生する太陽電池を用いれば充分であることを勘案すると、自発光式道路標識体１は２２０ｍＷ程度の電力を発生する太陽電池１２を用い、それと並列に入力される外部電源装置２には２２０ｍＷ〜４４０ｍＷ程度の電力を発生する太陽電池２１を用いれば充分である。
【００１７】
なお自発光式道路標識体１の外部電力入力端子１７を並列に複数設け、それぞれに外部電源装置２を接続してもよいし、１個の外部電力入力端子１７に複数の外部電源装置２を並列に接続し、入力する外部電力を増やしてもよい。外部電力入力端子１７は、外部電源装置２が容易に後付けできるように路面に露出されていてもよいが、防水構造により路面に埋設された位置に設けられているのが好ましい。
【００１８】
【発明の効果】
本発明に用いられる自発光式道路標識体によれば、外部電力入力端子を有し、外部電力入力端子に外部電源装置を接続することにより、太陽電池によって発生した電力に加えて外部電源装置からの外部電力も蓄電装置に充電することができるようになされているので、この自発光式道路標識体を日陰になりやすい所に設置する場合は、外部電力入力端子に外部電源装置を接続しておくことにより電力不足を解消することができ、又日射量が充分で必要な電力が得られる所には、外部電源装置を接続せずに従来品と同様に設置すればよく、その設置後に日射量が低くなった場合は、その時点で外部電力入力端子に外部電源装置を接続すればよく、電力不足に対して容易且つ迅速に対応することができる。
【００１９】
本発明による自発光式道路標識装置によれば、前記自発光式道路標識体の外部電力入力端子に、太陽電池と、その太陽電池によって発生した電力を出力する電力出力端子とを有する外部電源装置が接続され、外部電源装置からの外部電力が電力出力端子より前記自発光式道路標識体の外部電力入力端子に入力され、自発光式道路標識体の太陽電池によって発生した電力に加えて外部電源装置の電力もこの自発光式道路標識体の蓄電装置に充電されるようになされているので、自発光式道路標識体を日陰になりやすい所に設置しても、同様に外部電源装置を設置することにより、自発光式道路標識体の太陽電池だけでは不足する電力が、外部電源装置の太陽電池による発生電力によって補われるために、電力不足を回避することができる。外部電源装置は充分な日射量の得られる所に設置するのが好ましいが、容量の大きな太陽電池を外部電源装置に用いれば、自発光式道路標識体と同様に日陰になりやすい所に設置してもよい。
【図面の簡単な説明】
【図１】 本発明の実施の一形態を示す断面図である。
【図２】 図１の動作を示すブロック図である。
【符号の説明】
１ 自発光式道路標識体
１１ ケース本体
１２ 太陽電池
１３ 蓄電装置
１４ 発光体
１５ 制御回路
１６ 透光体
１７ 外部電力入力端子
２ 外部電源装置
２１ 太陽電池
２２ 電力出力端子
２３ ケース本体
２４ 透光板
３ ケーブル[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a self-light-emitting road sign device using a self-light-emitting road sign that is adapted to emit light using a power generated by a solar cell.
[0002]
[Prior art]
Currently, a light emitting diode such as a light emitting diode is caused to emit light by a solar cell on a road, or a warning or gaze guidance is given to a vehicle driver or a pedestrian by combining a light emitting body and a reflector having retroreflective properties. Numerous self-luminous road signs are installed on the road surface and roads to prevent accidents. For example, self-luminous road signs called so-called self-luminous road fences are installed on the road surface, curbstones, etc. at the center line, intersection center, and stop lines of roads. Self-luminous road signs called so-called self-luminous gaze guidance signs and self-luminous sign boards are installed on columns, guardrails and the like that are erected on the road.
[0003]
[Problems to be solved by the invention]
However, such a self-luminous road sign body temporarily stores the electric power of the solar battery generated by the sunlight irradiation in the daytime in the power storage device, and causes the nighttime illuminator to emit light by the stored electric power. When the amount of solar radiation is low, the power generated by the solar cell is reduced and the power stored in the power storage device is also insufficient, and the place where the light emitter should emit light from sunset to dawn turns off without waiting for dawn. The function may not be fully exhibited. For example, a self-luminous road fence is often installed on a curved road in a mountainous area with poor visibility and high traffic risk. In such a mountainous area, sunlight is blocked by the mountain depending on the time of day. It may be in the shade and it may be difficult to obtain the amount of solar radiation that matches the required power.
[0004]
Therefore, in such a place that is prone to be shaded, it has been necessary to predict it in advance and mount a high-power solar cell so that the necessary power can be obtained even in the shade or give up the installation. In addition, it is possible that a building, etc. will be built around the building after installation, and the sunlight will be blocked by the building, etc. In such a case, either install it again on a device equipped with a high-output solar cell or install it. It was difficult to respond easily and quickly to the power shortage that occurred after installation.
[0005]
The present invention is to solve the mentioned problems above, it is possible to eliminate the power shortage when installed in place prone to shade, and self-emission which can accommodate easily and quickly to the power shortage A type road sign device is to be provided.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the present invention is configured as follows.
That is, a self-luminous road sign device according to the present invention includes a solar cell, a power storage device that charges power generated by the solar cell, a light emitter that emits light from the charged power storage device, and a power storage device at night. A control circuit for supplying light to the light emitter and causing the light emitter to emit light, and an external power input terminal capable of inputting external power to the power storage device in parallel with the power of the solar cell, and an external power input terminal The external power input of the self-luminous road sign body is configured such that by connecting an external power supply device to the power storage device, external power from the external power supply device can be charged in addition to the power generated by the solar cell. An external power supply device is connected to the terminal, and the external power supply device includes a solar battery and a power output terminal that outputs power generated by the solar battery. Is input from the power output terminal to the external power input terminal of the self-light-emitting road sign body, and in addition to the power generated by the solar cell of the self-light-emitting road sign body, the power of the external power supply is also this self-light-emitting road sign body The power storage device is charged.
[0007]
[0008]
[0009]
According to the self-luminous road sign device of the present invention, by connecting an external power supply device to the external power input terminal, the power storage device is charged with external power from the external power supply device in addition to the power generated by the solar cell. An external power supply device having a solar cell and a power output terminal for outputting power generated by the solar cell is connected to the external power input terminal of the self-luminous road sign body that is configured to be capable of External power from the device is input from the power output terminal to the external power input terminal of the self-luminous road sign, and in addition to the electric power generated by the solar cell of the self-luminous road sign, Since the power storage device of the light-emitting road sign body is charged, even if the self-light-emitting road sign body is installed in a shaded place, an external power supply device is also installed. The Rukoto, power is insufficient alone solar cell spontaneous light road sign body, in order to be supplemented by power generated by the solar cell of the external power supply, it is possible to avoid a power shortage. It is preferable to install the external power supply in a place where sufficient solar radiation can be obtained, but if a large-capacity solar cell is used for the external power supply, it should be installed in a place where it is likely to be shaded like a self-luminous road sign. May be.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be specifically described with reference to the drawings. FIG. 1 is a sectional view showing an embodiment of the present invention, and FIG. 2 is a block diagram showing the operation of FIG.
[0011]
In the drawings, reference numeral 1 denotes a self-luminous road sign used in the present invention, and reference numeral 2 denotes an external power source. The self-luminous road sign 1 and the external power source 2 are used to form the self-luminous type according to the present invention. A road sign device is constructed. The self-light-emitting road sign 1 shown in this form is a so-called self-light-emitting road fence and is installed on the road surface, but the self-light-emitting road sign used in the present invention is used. The body 1 and the self-luminous road sign device are not limited to the self-luminous road fence, and the solar battery emits the luminous body to give a warning or guidance to the vehicle driver or pedestrian, It includes all road signs installed on roads and road surfaces in order to prevent traffic accidents.
[0012]
The self-light-emitting road sign 1 shown in the drawings includes a solar cell in a case body 11 having an upper portion made of a metal such as aluminum die casting or a synthetic resin having excellent strength, corrosion resistance and moldability. 12, a power storage device 13 such as a lead storage battery or an electric double layer capacitor that charges the generated power of the solar cell 12 input via a backflow prevention circuit, an overcurrent prevention circuit (both not shown) or the like, and a power storage device A light-emitting body 14 such as a light-emitting diode that emits light by power from 13, and a control circuit 15 for supplying power from the power storage device 13 to the light-emitting body 14 at night and causing the light-emitting body 14 to flash and emit light; A translucent body 16 made of translucent synthetic resin such as polycarbonate or acrylic resin or hard translucent glass is crowned on the upper portion so as to close the opening of the case body 11. Then, by embedding the case body 11 in the road surface so that the surface of the light transmitting body 16 is substantially flush with the road surface, the light emitted from the light emitting body 14 is transmitted through the light transmitting body 16 and the elevation angle slightly above the road surface. It is designed to be released to the outside.
[0013]
The configuration described above is not different from that of a conventional self-luminous road fence, but the present invention is different from the conventional self-luminous road fence in that it has an external power input terminal 17. That is, an external power input terminal 17 that can input external power to the power storage device 13 is provided in parallel with the power of the solar cell 12, and is generated by the solar cell 12 by connecting the external power supply device 2 to the external power input terminal 17. In addition to the electric power, the external electric power from the external power supply device 2 can be charged to the power storage device 13.
[0014]
The external power supply device 2 connected to the external power input terminal 17 includes a solar cell 21 and a power output terminal 22 that outputs power generated by the solar cell 21. The power output terminal 22 and the external power input terminal 17 can be connected by the cable 3. And by connecting in this way, the external electric power which generate | occur | produced by the solar cell 21 of the external power supply device 2 is input into the external electric power input terminal 17 of the said self-light-emitting road sign 1 from the electric power output terminal 22, and self-light-emitting In addition to the electric power generated by the solar battery 12 of the road sign 1, the external electric power from the external power supply device 2 can be charged to the power storage device 13 of the self-light-emitting road sign 1.
[0015]
This external power supply device 2 accommodates a solar cell 21 in a case body 23 substantially similar to the case body 11 of the self-light-emitting road sign 1 so that the same construction as the self-light-emitting road sign 1 can be performed. A light-transmitting plate made of light-transmitting synthetic resin such as polycarbonate or acrylic resin, hard light-transmitting glass, or the like so as to protect the solar cell 21 and allow sunlight to enter the solar cell 21 A form such as 24 is preferred.
[0016]
As for the capacity of the solar cell 21 used for the external power supply device 2, it is necessary to empirically require two to three times the electric power in places where the amount of solar radiation is low, and generally in places where the amount of solar radiation is sufficient. Considering that it is sufficient to use a solar cell that generates about 220 mW of power, the self-luminous road sign 1 uses a solar cell 12 that generates about 220 mW of power, and is input in parallel with the external power supply device. It is sufficient to use a solar cell 21 that generates electric power of about 220 mW to 440 mW.
[0017]
A plurality of external power input terminals 17 of the self-light-emitting road sign 1 may be provided in parallel, and the external power supply device 2 may be connected to each of them, or a plurality of external power supply devices 2 may be connected to one external power input terminal 17. You may connect in parallel and increase the input external power. The external power input terminal 17 may be exposed on the road surface so that the external power supply device 2 can be easily retrofitted, but is preferably provided at a position embedded in the road surface by a waterproof structure.
[0018]
【The invention's effect】
According to the self-luminous road sign used in the present invention, it has an external power input terminal, and by connecting the external power supply device to the external power input terminal, in addition to the power generated by the solar cell, The external power supply can also be charged to the power storage device, so when installing this self-luminous road sign in a place that is likely to be shaded, connect an external power supply device to the external power input terminal. It can be installed in the same way as the conventional product without connecting an external power supply to the place where necessary power can be obtained with sufficient solar radiation. When the amount becomes low, an external power supply device may be connected to the external power input terminal at that time, and it is possible to easily and quickly cope with power shortage.
[0019]
According to the self-light-emitting road sign device of the present invention , the external power supply device having a solar cell and a power output terminal for outputting the power generated by the solar cell at the external power input terminal of the self-light-emitting road sign body External power from the external power supply device is input to the external power input terminal of the self-light-emitting road sign from the power output terminal, and in addition to the power generated by the solar cell of the self-light-emitting road sign The power of the device is also charged to the self-luminous road sign body power storage device, so even if the self-luminous road sign body is installed in a shaded place, an external power supply is installed in the same way By doing so, since the electric power that is insufficient only by the solar battery of the self-luminous road sign body is supplemented by the electric power generated by the solar battery of the external power supply device, the electric power shortage can be avoided. It is preferable to install the external power supply in a place where sufficient solar radiation can be obtained, but if a large-capacity solar cell is used for the external power supply, it should be installed in a place where it is likely to be shaded like a self-luminous road sign. May be.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing an embodiment of the present invention.
FIG. 2 is a block diagram showing the operation of FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Self-light-emitting road sign body 11 Case main body 12 Solar cell 13 Power storage device 14 Light emitter 15 Control circuit 16 Transmissive body 17 External power input terminal 2 External power supply device 21 Solar cell 22 Power output terminal 23 Case main body 24 Translucent plate 3 cable

Claims (1)

太陽電池と、その太陽電池によって発生した電力を充電する蓄電装置と、充電された蓄電装置の電力により発光する発光体と、夜間に蓄電装置からの電力を発光体に供給し、発光体を発光させる制御回路と、前記太陽電池の電力と並列に外部電力を蓄電装置に入力することができる外部電力入力端子とを有し、外部電力入力端子に外部電源装置を接続することにより、太陽電池によって発生した電力に加えて外部電源装置からの外部電力も蓄電装置に充電することができるようになされた自発光式道路標識体の前記外部電力入力端子に外部電源装置が接続され、外部電源装置は、太陽電池と、その太陽電池によって発生した電力を出力する電力出力端子とを有し、外部電源装置からの外部電力が電力出力端子より前記自発光式道路標識体の外部電力入力端子に入力され、自発光式道路標識体の太陽電池によって発生した電力に加えて外部電源装置の電力もこの自発光式道路標識体の蓄電装置に充電されるようになされたことを特徴とする自発光式道路標識装置。 A solar battery, a power storage device that charges the power generated by the solar battery, a light emitter that emits light by the power of the charged power storage device, and supplies power from the power storage device to the light emitter at night to emit light A control circuit that allows the external power to be input to the power storage device in parallel with the power of the solar battery, and by connecting the external power supply device to the external power input terminal, In addition to the generated power, an external power supply is connected to the external power input terminal of the self-illuminating road sign body so that the external power from the external power supply can be charged to the power storage device. A solar battery and a power output terminal that outputs power generated by the solar battery, and external power from an external power supply device is external to the self-luminous road sign from the power output terminal. In addition to the electric power input to the power input terminal and generated by the solar cell of the self-luminous road sign body, the electric power of the external power supply device is also charged to the electric storage device of the self-luminous road sign body A self-luminous road sign device.
JP02755298A 1998-02-09 1998-02-09 Self-luminous road sign device Expired - Fee Related JP3665468B2 (en)

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US6602021B1 (en) * 2002-01-14 2003-08-05 Kwung-Chul Kim Pavement marker and method for manufacturing the same
FR2855338B1 (en) * 2003-05-20 2006-09-15 Somfy Sas DEVICE COMPRISING A MINI APPARATUS OF ELECTRIC POWER STORAGE MEDIUM POWERED BY A PHOTOVOLTAIC PANEL AND ITS CHARGING METHOD
CN102646378A (en) * 2011-02-18 2012-08-22 张一熙 Solar electronic billboard system
ES1119982Y (en) * 2014-05-16 2014-11-18 Figueiras Agustín Carballa EDGE PARTS WITH LIGHT
CN104157226B (en) * 2014-08-20 2017-09-29 张远镇 Application method in electric bus charging pile security protection system and its workflow
CN110904873B (en) * 2019-12-18 2021-12-07 台州玖屹科技有限公司 Opposite-direction vehicle-coming warning device for curve in mountainous area

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