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littleguga2015-05-20 03:32:52
Electronics
littleguga, 2015-05-20 03:32:52

Has NFC grown out of RFID?

I'm a little confused, please help me to dot the i's.
Has NFC grown out of RFID? That is a continuation of the development of RFID?
Or is it more correct to say?
Is this technology using rfid?
I realized that the basis of everything is radio data exchange.
ps
Please do not throw stones.

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bobrovskyserg, 2015-05-20
@littleguga

NFC - communication is not electromagnetic, but "inductive", in the near field of the source (the field decreases ~ 1 / distance ^ 4). RFID - radio (~ 1/distance^2). In the near field, NFC devices may not emulate RFID.
NFC - devices "mutual" there is no difference between father / mother. Therefore, NFC is active, they cannot do without a battery.
NFC includes a channel protocol through which data can be transferred. RFID is just a digital label.
"In general, it doesn't matter" (c)

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