According to whether there is a power source, it can be divided into passive and active.
The passive inductor itself has no power source. Its power source comes from Reader. The frequency emitted by the reader causes the inductor to generate energy and then sends the data back to the reader. It is light in weight, short in size, long in service life, and short in sensing distance.
Active Tag: The price is higher. Because of the built-in battery, it is larger than passive tags, has a long service life and a longer sensing distance.
According to frequency, it can be roughly divided into three categories: LF, HF, and UF.
Low frequency: The sensing distance of 100-500KHz low frequency is short, and the reading speed is slow, mainly at 125 kHz, which has good penetration ability.
High frequency: 10-15MHz high frequency has a slightly longer sensing distance, and the reading speed is faster than low frequency (mainly 13.56MHz).
UHF (UHF/Microwave): Between 850-950 MHz (UHF) and 2.45 GHz, the sensing distance is the longest, the speed is the fastest, and the penetration is poor.
As a data carrier, electronic tags can play the role of identification, object tracking, and information collection. In foreign countries, electronic tags have been applied in a wide range of fields. The RFID system composed of an electronic tag, reader, antenna, and application software is directly connected with the corresponding management information system.
Every item can be tracked accurately. This comprehensive information management system can bring many benefits to customers, including real-time data acquisition, secure data access channels, off-line access to all product information, and so on. In foreign countries, RFID technology has been widely used in many fields such as industrial automation, commercial automation, and so on. The scope of application includes: