Antenna, which can be regarded as the air interface
for signal information transmission between the
reader and the tag.
• Most common tags consist of a control module and a
RF module, and each tag has a unique electronic
code, which is used to store related information of
the objects. The passive tags and the active tags are
popular tags today. The passive tags do not require
battery power and can be produced at a low cost, but
the reader ranges are short. The active tags have their
own battery power and allows for longer ranges and
better accuracy, but active tags have a finite lifetime
due to the battery [2].
• The RFID reader, also referred to as the interrogator,
is responsible for holding and processing the signal
information from the tags and exchanging it with the
computer management system for further
processing. The signal information is transmitted
through the antenna with the coupling method which
is usually either electromagnetic coupling or
magnetic coupling in the RFID systems [2].
• The RFID middleware is an important intermediary
in the RFID applications, which is responsible for
assuring different readers working in phase and
filtering the signal information.
• The computer management system is used to store
and process data information, which is often an
essential part of a large network of computers.
Antenna, which can be regarded as the air interface for signal information transmission between the reader and the tag. • Most common tags consist of a control module and a RF module, and each tag has a unique electronic code, which is used to store related information of the objects. The passive tags and the active tags are popular tags today. The passive tags do not require battery power and can be produced at a low cost, but the reader ranges are short. The active tags have their own battery power and allows for longer ranges and better accuracy, but active tags have a finite lifetime due to the battery [2]. • The RFID reader, also referred to as the interrogator, is responsible for holding and processing the signal information from the tags and exchanging it with the computer management system for further processing. The signal information is transmitted through the antenna with the coupling method which is usually either electromagnetic coupling or magnetic coupling in the RFID systems [2]. • The RFID middleware is an important intermediary in the RFID applications, which is responsible for assuring different readers working in phase and filtering the signal information. • The computer management system is used to store and process data information, which is often an essential part of a large network of computers.
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