Different types of RFID systems, usually for following three types:
LF RFID
The LF frequencies commonly from 125KHz to134KHz;
Usually LF RFID systems operate at 125 KHz. This frequency band provides a short read range of 0-4 cm, and has slower read speed than the higher frequencies, but is not very sensitive to radio wave interference.
LF RFID applications include access control and livestock tracking.
HF RFID
The HF band ranges from 3 to 30 MHz. Most HF RFID systems operate at 13.56 MHz with read ranges 3-15cm.
HF RFID is commonly used for ticketing, payment, and data transfer applic
ations.
Different standards and application:
ISO 15693 standard for tracking items.
ECMA-340 and ISO/IEC 18092 standards for Near Field Communication (NFC), a short range technology that is commonly used for data exchange between devices. Like mobile phone and labels, and two mobile phones.
ISO/IEC 14443 A and ISO/IEC 14443 B, used in smart cards and proximity cards.
UHF RFID
The UHF frequency commonly is 860-960MHz. While there is some variance in frequency from region to region, UHF Gen2 RFID systems in most countries operate between 900 and 915 MHz.
UHF RFID usually used in logistics, assets management.
Different types of RFID systems has different applications, according to your application choose the right system, or get suggestions from us!
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Both RFID and Bar code are used for store information,but there are too much difference:
For the bar code, the scanner must direct to the bar code,however, the RFID just close the label or near it, is OK;
RFID label can support long distance,several meters or even more, the bar code could not longer than 5 meters;
RFID reader can read labels faster, hundreds at one times;
For the bar code must put the scanner to the right place and right distance,need several seconds;
On the other hand, the bar code can not be dirty, damaged, covered by others. RFID would be more durable, not influenced by the environment, also can be embody in any material any shape;
Bar code can not write data, only a serial number for your scan, for RFID you can write data according to your needs;
However, RFID would be more expensive than Bar code.
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