不同的NFC编码格式有什么区别和用例?

时间:2019-09-27 03:29:36

标签: ios core-nfc

我正在尝试用NFC标签替换/补充QR码以进行付款,但是我不确定应该选择哪种NFC编码格式。 (类似于微信支付,客户无需点击QR码,而是点击NFC标签并输入金额)

iOS 13增加了对NDEF和本地标签(即ISO7816,MIFARE,ISO15693和FeliCa)的读写功能。

每种编码方法有什么好处?

快速搜索显示,区别在于读/写能力,内存和传输速度:

    1. Tag 1 Type:   The Tag 1 Type is based on the ISO14443A standard. These NFC tags are read and re-write capable and users can configure the tag to become read-only. Memory availability is 96 bytes which is more than sufficient to store a website URL or other small amount of data. However the memory size is expandable up to 2 kbyte. The communication speed of this NFC tag is 106 kbit/s. As a result of its simplicity this tag type is cost effective and ideal for many NFC applications.
    2. Tag 2 Type:   The NFC Tag 2 Type is also based on ISO14443A. These NFC tags are read and re-write capable and users can configure the tag to become read-only. The basic memory size of this tag type is only 48 bytes although this can be expanded to 2 kbyte. Again the communication speed is 106 kbit/s.
    3. Tag 3 Type:   The NFC Tag 3 Type is based on the Sony FeliCa system. It currently has a 2 kbyte memory capacity and the data communications speed is 212 kbit/s. Accordingly this NFC tag type is more applicable for more complex applications, although there is a higher cost per tag.
    4. Tag 4 Type:   The NFC Tag 4 Type is defined to be compatible with ISO14443A and B standards. These NFC tags are pre-configured at manufacture and they can be either read / re-writable, or read-only. The memory capacity can be up to 32 kbytes and the communication speed is between 106 kbit/s and 424 kbit/s.

每种编码格式的安全级别如何?

例如: 1)MIFARE:例如澳大利亚Victoria Myki(火车电车)(ISO / IEC 14443 A型13.56 MHz)—>应为1型和2型

0 个答案:

没有答案