What is RFID technology

RFID (Radio Frequency Identification) is a non-contact automatic identification technology based on radio waves. Its core is to automatically capture target data through radio frequency signals, and complete identification, tracking, and management without manual intervention. The following is a systematic analysis of its technical principles and characteristics: 1. Technical principles and system composition

1. Working principle

RF interaction: The reader/writer emits a specific frequency RF signal (such as 13.56MHz or 860-960MHz) through the antenna, activating the chip inside the electronic tag and supplying power to it (passive tag).

Data transmission: The tag modulates the stored encoded information (such as unique ID or sensor data) and sends it back to the reader/writer. After demodulation and decoding, it is transmitted to the backend system for processing.

2. Core components

Electronic tag: Built in chip and antenna, storing data (such as ID and status information), attached to the surface of the recognized object.

Reader/writer: controls RF signal transmission and reception, supports multi tag batch reading (such as logistics sorting identifying hundreds of items per second).

Backend system: processes identification data, implements inventory management, permission control and other application logic.

2、 Core technical features

1. Non contact operation

No need for eye alignment or physical contact, effectively identifying distances ranging from centimeters (access cards) to tens of meters (logistics tracking).

O Support penetration through non-metallic materials such as paper and plastic, suitable for harsh environments such as oil stains and dust.

2. Efficient multi-target recognition

It can simultaneously read hundreds of tags (such as scanning the entire row of shelves during warehouse inventory), greatly improving operational efficiency.

3. Data readability and readability

The tag supports repeated erasures (such as FRAM tag erasures up to 10 ¹² times) and real-time updates of item status (such as logistics location and temperature records).

4. Safety and durability

The encryption chip prevents data tampering (such as AES/DES algorithm) and is suitable for high security scenarios such as payment and anti-counterfeiting.

No mechanical components, high and low temperature resistance, vibration resistance, and a lifespan of over 10 years.

3、 Typical application scenarios: logistics and warehousing, retail and consumption, intelligent management, industry and manufacturing