METHOD AND DEVICE FOR SENDING MESSAGES

FIELD: physics.SUBSTANCE: method includes: detecting, whether the user is in the target site; if the user is not in the target site, detecting, whether the door or window of the target site are opened; and if a door or window of the target site is opened, sending an alert message to the device, wear...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	FU Tsyan, VAN Yan, CHEN Tin
Format:	Patent
Sprache:	eng ; rus
Schlagworte:	ALARM SYSTEMS BROADCAST COMMUNICATION ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY ORDER TELEGRAPHS PHYSICS SIGNALLING SIGNALLING OR CALLING SYSTEMS WIRELESS COMMUNICATIONS NETWORKS
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