Monitoring device

A monitoring device comprising a plurality of emitters and a plurality of receivers is provided. The emitters are capable of being driven to emit waves with directivity. The receivers are correspondingly disposed with respect to the emitters for receiving the waves. The transmitting paths of the wav...

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Bibliographische Detailangaben
Hauptverfasser:	LIU, PENG-TA, YANG, SHU-WEI, CHEN, SHIH-FU, WEI, TA-SEN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ALARM SYSTEMS ANALOGOUS ARRANGEMENTS USING OTHER WAVES DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASURING ORDER TELEGRAPHS PHYSICS RADIO DIRECTION-FINDING RADIO NAVIGATION SIGNALLING SIGNALLING OR CALLING SYSTEMS TESTING
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Beschreibung
Zusammenfassung:	A monitoring device comprising a plurality of emitters and a plurality of receivers is provided. The emitters are capable of being driven to emit waves with directivity. The receivers are correspondingly disposed with respect to the emitters for receiving the waves. The transmitting paths of the waves define a monitoring area. The monitoring device is able to determine the moving trend and the location of the first object in the monitoring area when the specific waves are reflected to and received by the corresponding receivers.