Device for reminding safety when waiting on railway platform

The utility model relates to a device for reminding safety when waiting on railway or subway platform, which comprises an M laser generator and an M light sensitive resistor arranged at the two ends of a straight-line platform yellow line. The laser beam generated by the M laser generator can be pro...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	FENG XIUWEN, YANG ZHAOYI, MA JIAHUI, CEN LIPING, HE GUILING
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ALARM SYSTEMS ORDER TELEGRAPHS PHYSICS SIGNALLING SIGNALLING OR CALLING SYSTEMS
Online-Zugang:	Volltext bestellen
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