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Smart home wireless technology RFID radio frequency technology

by:Jason 2238 browse Time required for reading:2

Smart home wireless technology RFID radio frequency technology


1. RFID technology concept


RFID technology, namely radio frequency identification technology, can identify specific targets through radio signals and read and write relevant data to specific targets without establishing mechanical or optical contact between the identification system and specific targets.

RFID technology uses a special RFID reader and a special RFID tag that can be attached to the target. The information in the RFID tag is transmitted to the RFID reader by using the frequency signal.


2. Basic structure of RFID Technology


The basic structure of RFID technology is composed of Balise, reader and application software system.

Balise: it is composed of antenna, coupling element and chip. In general, tags are used as balise. Tags are attached to objects to identify target objects. Each tag has a unique electronic code.

Reader: like transponder, it is composed of antenna, coupling element and chip. Reader is used to read and write tag information. The common types are handheld RFID reader and fixed reader.

Application software system: is the application layer software, mainly used to further process the collected data and for people to use.


3. RFID technology core


RFID technology is a kind of non-contact automatic identification technology. It can automatically identify the target object and obtain relevant data through radio frequency signal. The identification process can be carried out automatically without manual interference and environmental impact. It can work in all kinds of malicious environments. RFID technology can identify high-speed moving objects and multiple tags at the same time.

Compared with bar code, RFID electronic tag is a breakthrough technology. First, unlike barcode, it can identify a kind of object intelligently, but can identify a single very specific object; second, the electronic tag uses radio frequency, which can read data through external materials, and barcode must rely on laser to read information; third, it can identify multiple objects at the same time. The barcode can only be identified one by one, in addition, the amount of information stored is also very large.


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