近场通信(NFC)和射频识别(RFID)之间的区别

1.近场通信(NFC)：
NFC是一种短距离高频无线通信技术，主要用于移动或手持设备。它提供通过触摸两个电话或将它们保持在几厘米之间而建立的无线电通信。只需将两个设备彼此保持在一起并在最后几厘米使用无线通信接口，就很容易进行目标选择。 NFC通信主要基于感应耦合，该感应耦合在两个工作频率为13.56MHZ的环形天线之间使用磁感应进行工作，数据变化在106至424kbit / s之间。

NFC主动模式和被动模式有两种类型。在活动模式下，两个设备都可以产生电磁场并彼此交换信息。在被动模式下，只有一个主动用户，其中包含可以读取其他设备的信息，但它本身并不读取任何信息。

2.射频识别(RFID)：
RFID是一种使用Internet的自动识别方法。其中，可由RFID读取器读取的类似于条形码的数字编码在RFID标签中的数据和从标签读取的数据由读取器存储在数据库中。它由集成电路和天线两部分组成，标签被保护性材料覆盖，该保护性材料可抵御各种环境影响。这可能是无源和有源和无源RFID标签最常用的标签。

它源自(AIDC)自动识别和数据捕获技术，该技术用于数据收集以及将收集到的数据映射到计算机系统。它使用无线通信和RFID无线电波来执行AIDC函数。

近场通信(NFC)和射频识别(RFID)之间的区别：

Basis off	NFC	RFID
Developed	Near Field Communication technology is introduced in 2002.	Radio Frequency Identification technology is introduces in 1980.
Definition	Near Field Communication it is a type of short-range high-frequency wireless communication technology and is mainly used for mobile or handheld device.	Radio Frequency Identification is an automatic identification method uses Internet, in which data digitally encoded in RFID tag .
Tags	Near Field Communication tags are passive in nature.	Radio Frequency Identification tags can be both active or passive in nature and also semi passive in nature.
Communication	Near Field Communication provides bidirectional communication.	Radio Frequency Identification unidirectional communication.
Structure	In which only smartphone with in built Near Field Communication.	In which we add some extra tags and reader.
Security	It provides medium security features.	It provides features like miss reading duplication or basic security.
Sampling	Sampling is present in Near Field Communication.	Sampling is not present in Radio Frequency Identification.
Frequency range.	In Near Field Communication we operate only high frequency 13.56mhz and act as both reader and tag.devices must be close proximity due to short read range.	Radio Frequency Identification contain three types of range. Low frequency-125-134khz High frequency-13.56mhz Ultra high frequency-856mhzto 960mhz
Popular Uses	Near Field Communication tags are generally used for.. Paying bills using NFC. Tracking car miliage. Sharing data. Sharing and transferring information between two devices by tapping each other. Contactless payment	Radio Frequency Identification tags generally used for Asset tracking Tools Tracking Race timing Access control Inventory tracking
Range	0.2m	100m
Power Consumption	424kbit/s	Varies with frequency.	Setup	Medium.	Diffcult to setup.	Cost	Low.	High
Maximum Coverage Length	10cm	3m