Home / all / Product Knowledge /

Components and Main Functions of RFID Readers

Components and Main Functions of RFID Readers

Issue Time:2021/10/26
RFID技术的基本结构和工作原理
所述RFID阅读器是一个射频识别,它自动识别目标对象,并通过射频识别信号获取的相关数据,而无需人工干预,可以识别高速移动的物体,并且可以在同一时间识别多个RFID标签,以及操作快捷方便。一个典型的RFID阅读器终端一般由以下三部分组成。

1. RFID天线

RFID阅读器是一种用于发送和接收的设备。它主要负责将阅读器中的电流信号转换为射频载波信号并发送,或接收标签发送的射频载波信号并转换为电流信号。

阅读器的天线可以是外置的,也可以是内置的,天线的设计对阅读器的性能非常重要。对于标签来说,它的工作能量全部由阅读器的天线提供。

2.射频接口模块

FID阅读器的接口模块主要包括发射器、射频接收器等。该模块是读写器的射频前端,也是影响读写器成本的关键部件。它主要负责发送和接收。

调制电路负责对要发送的信号进行调制,然后发送;解调电路负责对标签发送的信号进行解调和放大;时钟发生器负责产生系统正常工作的时钟。

3.逻辑控制模块

The reader module is the control center and intelligent unit of the entire reader, and it is the "brain" of the reader. The logic control module issues instructions when the reader is working, and the interface module performs different operations according to different instructions.

The microcontroller can complete signal encoding and decoding, data encryption and decryption, and execution of anti-collision algorithms; the storage unit is responsible for storing some programs and data; the application interface is responsible for communication with input or output.

The reason why the RFID reader is very important is determined by its function. Its main functions are as follows:

(1) The most common is to read tags. This function requires a reliable software algorithm to ensure safety and reliability. In addition to reading, it is sometimes necessary to write to the label, so that the label can be mass-produced, and the user can write to the label according to his needs.

(2) When the tag is passive or semi-passive, the reader is required to provide energy to activate the electronic tags around the field; the range that the reader can reach in the radiofrequency field is mainly determined by the size and the reader. The size of the antenna is mainly considered according to the application requirements, and the output power has different regulations in different countries and regions.

(3) Realize the communication with the computer network: this function is also very important, the reader can use some interfaces to realize the communication with the upper computer, and can provide some necessary information to the upper computer.

(4) The reader can correctly identify multiple tags within its working range.

(5) The reader can recognize not only stationary objects but also moving objects.

(6) For some errors in the recognition process, the reader can send out some prompts.

(7) For the tag, the reader can read the battery information of the active tag: such as the total battery power and remaining power of the battery.

YANZEO制造的RFID阅读器可以在信号穿透力强的突变和恶劣环境中工作,可以快速识别和读取标签。如果您在阅读以上内容后想进一步了解RFID阅读器,您可以联系我们获得全面的解决方案。

作为经验丰富的RFID阅读器和条码扫描器制造商,我们为客户提供涵盖多种规格的广泛产品和服务,以满足用户的不同需求。我们的产品已出口到全球100多个国家,得到了众多客户的好评和信赖。我们很高兴为我们的客户开发有效的解决方案。如果您对我们的 RFID 阅读器感兴趣,请立即与我们联系!
Keep up with the latest technology news and innovations with the Newsletter.
Follow Us

Pro RFID & BarCode

www.yanzeorfid.com
Pro RFID & BarCode