Bluetooth e nfc

 

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Near field communication e Bluetooth

Controllo presenze personaleDifferenze tra nfc e bluetooth

The device connection time of NFC devices are lesser than a second [i.e. 1/10th of a second to be precise]. So you bring two devices near and they get connected in a fraction of time. No glitz as we face in Bluetooth. Pairing. Passcodes. No pain.


Power consumption is the next big thing. NFC consumes less power when compared to Bluetooth. But what I would think is , Bluetooth would be much efficient than NFC, since NFC devices share power, there will a loss in power for the device which has more power when compared to the other.


The interference is much lower when compared to Bluetooth. This comes as a compromise with the range at which NFC devices can communicate with each other. NFC has very low communication range. They can communicate with each other only if the devices fall under 0.2 meters.

What should I choose then? NFC or Bluetooth?

I don’t think these two technologies can be compared. Both NFC and Bluetooth have got equal voodoo powers. A device with these two technologies integrated into it would do wonders. Note that NFC is not bound only to mobile but can also be incorporated into RFID (Mainly contactless RFID) and also on payment devices.

 

 

NFC technology is a short-range high frequency wireless communication-based on inductive coupling, where loosely inductive circuits can be used to share power and data between devices short range, and only within a few centimeters. This is an extension of the standard proximity card supporting RF communication requirement to ISO/IEC14443 and FeliCa smart cards and NFC devices.

Bluetooth is a proprietary protocol for short-range communication with a high level of security. It was developed by Ericsson Telecom seller. Operates in the ISM band that is 2.4 GHz Bluetooth is a packet-based communication architecture and a master and slave mater device can connect up to seven devices save.

The preparation time for the National Conference is much lower compared to Bluetooth. NFC devices automatically connects to in 0.1 sec. NFC operates at 13.56 MHz and can go up to the maximum data rate of 424 Kb / s, while Bluetooth operates at a frequency of 2.4 GHz and a maximum range of data rate of 2.1 Mb / s. Bluetooth works great distance within 10 m radius where she works as NFC maximum of 20 cm.

Regarding energy consumption, low-power applications NFC compared to Bluetooth devices when non-power mode that consumes more energy.In the NFC, the NFC device can contact the card NFC device is active and passive RFID read point to point mode.

 

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