Fastag，QR码和NFC之间的区别

1. Fastag：
Fastag提供了一种通过使用扫描仪扫描标签来支付通行税的新方法。通行税直接从驾驶员的银行帐户中扣除。这使得通行费的征收和支付变得无忧无虑，而且比传统的现金方式要快得多。

Paytm应用的Fastag选项

2. QR码：
QR码提供了一种以图片格式存储数据的新方法。此数据由QR码扫描仪扫描，以了解其包含的内容。这些已广泛用于社交媒体平台和非接触式支付服务。

扫描到www.geeksforgeeks.org的QR码

3.近场通信(NFC)：
NFC是一种使用设备中天线的感应耦合进行近距离通信和数据传输的方法。它为两个连接的设备之间的通信提供规则。它是一种相对新的技术，由Franz Amtmann和Philippe Mangars于2002年开发。

扬声器上的NFC

Fastag，QR码和NFC之间的区别：

S.No.	Fastag	QR code	NFC
1.	2014 was its year of development.	1994 was its year of development.	2002 was its year of development.
2.	It was developed by National Payments Corporation of India.	It was developed by Masahiro Hara.	It was developed by Franz Amtmann and Philippe Mangars.
3.	There is no further subdivision of Fastags.	It is only of 1 type (no subdivision).	It is only of 1 type (no subdivision).
4.	Method of collection of toll taxes, using the RFID technology.	Type of 2D barcode or printed representation of data that can be scanned for data retrieval.	Communication protocol for communication between devices (electronic) within a distance of 4cm.
5.	National Highway Authority of India (NHAI) uses it for collection of toll taxes.	It is used in supermarkets, hospitals, cinema or by individuals etc. for transfer of data (sharing contacts, photos, videos and other documents).	It is used as identity cards, as key cards and as a method of contactless payments and mobile payments in various sectors such as retail, automobile, cinema etc.
6.	Based on RFID technology.	Based on Morse Code technology.	Based on inductive coupling between antennas of the devices.
7.	Line of sight is not required.	It needs the line of sight.	It needs proximity (distance 4 centimetres, hence the name, Near field).
8.	Several Fastags can be scanned and processed at once.	Only one QR code is scanned and processed at once.	Only one NFC is scanned and processed at once.