Remote monitoring system with variable period communication check

A remote elevator monitoring system includes a master associated with a building and a local connected to the master. The local includes an electronic processor which executes instructions for determining whether the master has transmitted a signal packet to the local within a time period selectable...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	KRONEN, JOSEPH, PEPIN, RONALD R, CHRISTY, THERESA M, TALBOT, SAMUEL
Format:	Patent
Sprache:	eng
Schlagworte:	ALARM SYSTEMS ELEVATORS ESCALATORS OR MOVING WALKWAYS HAULING HOISTING LIFTING ORDER TELEGRAPHS PERFORMING OPERATIONS PHYSICS SIGNALLING SIGNALLING OR CALLING SYSTEMS TRANSPORTING
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