Signal light fault detection device based on voltage effective value

The invention relates to a signal light fault detection device based on a voltage effective value. The device comprises a controller, a switch control circuit, an IO expansion module, a detection module and a voltage conversion circuit. The input end of the switch control circuit is connected with t...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	YANG ZHIHUA, YUE CAILIN, CHEN FAGANG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES PHYSICS TESTING
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