EMERGENCY LIGHT DEVICE AND EMERGENCY LIGHT SYSTEM WITH COMMUNICATION FUNCTION

To enable communication via a power line.SOLUTION: An emergency light device installed in a tunnel includes: a conversion unit that converts AC power supplied from an external power supply into first DC power; a power storage unit that stores the first DC power and discharges second DC power; a comm...

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Bibliographische Detailangaben
Hauptverfasser:	MATSUMOTO KEIJI, NAKANO SHINICHI, ABE TOMONORI, KUKUTSU NAOYA, OGIWARA KAZUE
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	BLASTING CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRIC COMMUNICATION TECHNIQUE ELECTRIC HEATING ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF GENERATION HEATING LIGHTING MECHANICAL ENGINEERING NON-PORTABLE LIGHTING DEVICES STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR SYSTEMS FOR STORING ELECTRIC ENERGY SYSTEMS THEREOF TRANSMISSION VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLEEXTERIORS WEAPONS
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