RFID

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Topics: RFID
What’s RFID?
Radio frequency identification technology (RFID, Radio Frequency Identification) is a non-contact automatic identification technology, the basic principle is the use of the radio frequency signal transmission characteristics, automatic identification of objects to be identified.
Attached electronic tags to identify objects by surface or internal storage of information of the object, when the electronic tag reader into a modest area, the reader with no way of contacting the electronic tag information according to certain rules within the transmission to the back of computer processing systems or electronic control systems, enabling automatic recognition function automatically collect items or items of identification information.

The basic components of the RFID:
Tags: the coupling components and chips, each tag has a unique electronic code, attached to the object to identify the target object.
Reader: read (sometimes also written) device tag information can be designed for handheld rfid reader (eg: C5000W) or fixed reader.
Antenna: RF signals transmitted between tag and reader.

Working principle of the RFID
The basic working principle of RFID technology: the label into the magnetic field, radio frequency signal emitted by the reader receives, by virtue of the energy induced current obtained information sent out (Passive Tag, passive tags or passive tags) are stored in the chip, either by signal (Active Tag, active tags or active tags) initiative to send a frequency reader to read and decode the information sent to the central information system about data processing.

Classification of the RFID
RFID is divided into different application frequencies LF, HF, UHF, microwave, representation corresponding frequencies were: LF 135KHz or less, high frequency 13.56MHz, UHF 860M ~ 960MHz, microwave 2.4G, 5.8G . RFID according to the way energy is supplied into passive RFID, active RFID, and semi-active RFID. Passive RFID reader from the past,

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