1.斋戒：
Fastag 提供了一种通过使用扫描仪扫描标签来支付通行费的新方式。通行费税直接从司机的银行账户中扣除。与传统的现金方式相比，这使得征收和支付通行费税款更加轻松快捷。
paytm 应用程序上的 Fastag 选项
2.二维码：
二维码提供了一种以图形格式存储数据的新方法。此数据由二维码扫描仪扫描以了解其包含的内容。这些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 的二维码
3.近场通信(NFC) ：
NFC 是一种使用设备中天线的电感耦合进行近距离通信和数据传输的方法。它提供了两个连接设备之间的通信规则。这是一项相对较新的技术，由 Franz Amtmann 和 Philippe Mangars 于 2002 年开发。
扬声器上的 NFC
Fastag、二维码和NFC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. |