Anwendung von RFID-Systemen, 2.Auflage German - download pdf or read online

By Christian Kern

ISBN-10: 3540444777

ISBN-13: 9783540444770

ISBN-10: 3540444785

ISBN-13: 9783540444787

Die Radio-Frequenz-Identifikation (RFID) erm?glicht den drahtlosen Informationsaustausch zwischen Objekten, Personen, Tieren und dem IT-Netzwerk. Objekte, Personen oder Tiere werden dabei selbst zu Datentr?gern. Leser werden hier in die Lage versetzt, eine RFID-Anwendung von der Idee bis zur Praxis aufzubauen. Wie aktuell das Thema und entsprechend gro? die Nachfrage ist, zeigt das Erscheinen der 2. Auflage nach nur einem Jahr.

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Extra resources for Anwendung von RFID-Systemen, 2.Auflage German

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Some of the subcommands of the Access command are Kill, Lock, Read, and Write. You also learned about types of interrogators. Fixed interrogators are usually attached to an RFID portal or tunnel and usually use cables for their power as well as communication. I also discussed various kinds of mobile interrogators: vehicle-mounted interrogators are usually ruggedized and differently shaped versions of the fixed units implemented with forklifts or clamp trucks, and handhelds are portable because of their small size, integrated antenna, and wireless communication.

A. The convention for describing polarization is to use the direction of the electric field vector at a point in space. B, C, D. The electric field of an electromagnetic wave may rotate as the wave propagates through space. The electric field may rotate either left or right. If the electric field rotates to the right with constant amplitude, the wave is said to be right circular polarized. Circular polarization is a special case of elliptical polarization, in which the amplitude increases and decreases in a regular fashion as the electric field rotates.

Anticollision When two tags respond simultaneously to interrogation, the event is called a collision. If a collision occurs, the reader cannot successfully transfer data within either tag. To prevent tag collisions, readers and tags employ several anticollision mechanisms. The main anticollision methods are synchronous and asynchronous, also called deterministic and probabilistic, respectively. The probabilistic, or asynchronous, method is based on tags responding at randomly generated times. This method includes several specific protocols.

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Anwendung von RFID-Systemen, 2.Auflage German by Christian Kern

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