Concentrated on-off control circuit of subway vehicle display screens

Disclosed is a concentrated on-off control circuit of subway display screens. A master circuit breaker, a self-locking button, a cab-activating relay normally-open contact, and a display screen switch-off relay are serially connected so that a display screen control master circuit is formed. A displ...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	KANG XU, XUE JUAN, XU SHAOHONG, FENG YINBIN, ZHANG SHUN
Format:	Patent
Sprache:	eng
Schlagworte:	ADVERTISING ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION CRYPTOGRAPHY DISPLAY EDUCATION PHYSICS SEALS
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