RFID radio frequency technology of smart home wireless technology

RFID technology, namely radio frequency technology, also known as radio frequency identification technology. It is one of the communication technologies of wireless smart home, and it is widely used in the field of smart home. Now let's take a closer look at this smart home wireless technology-RFID radio frequency technology!

Analyze the RFID radio frequency technology of smart home wireless technology

1. RFID technology concept

RFID technology, or radio frequency identification technology, can identify specific targets through radio signals and read and write related data on specific targets without the need to establish mechanical or optical contact between the identification system and specific targets. RFID technology uses a dedicated RFID reader and a dedicated RFID tag that can be attached to the target, and uses frequency signals to transmit the information in the RFID tag to the RFID reader.

2. Basic structure of RFID technology

The basic structure of RFID technology is composed of transponder, reader and application software system.

Transponder: It is composed of antenna, coupling element and chip. Generally, tags are used as transponders. The tags are attached to objects to identify the target object. Each tag has a unique electronic code.

Reader: Like the transponder, it consists of antenna, coupling element and chip. The reader is a device used to read and write tag information. Commonly used are handheld RFID readers and fixed readers.

Application software system: application layer software, mainly used to further process the collected data and use it for people.

3. The core of RFID technology

RFID technology is a non-contact automatic identification technology. It automatically recognizes the target object and obtains related data through radio frequency signals. The identification process is performed automatically without manual intervention and environmental impact. It can work in a variety of hostile environments. RFID technology can identify high-speed moving objects and can identify multiple tags at the same time, and the operation is quick and convenient.

Compared with barcodes, RFID electronic tags are a breakthrough technology. First, they do not intelligently identify a class of objects like barcodes, but can identify individual very specific objects; second, electronic tags use radio frequency, which can be transparent. The data is read through external materials, and the barcode must be read by laser; third, multiple objects can be identified at the same time. The barcode can only be identified one by one, and the amount of stored information is also very large.