Do You Know The Difference Between Active Rfid And Passive Rfid?

 Active RFID, also known as active RFID, is a category of electronic tags defined by different power supply modes of electronic tags, and usually supports long-distance identification. Electronic tags can be divided into active electronic tags, passive electronic tags and semi-passive electronic tags.
 Passive RFID, that is, the passive radio frequency tag adopts the carrier working mode and has anti-interference ability. Users can customize the reading and writing of standard data. The efficiency is very convenient on the special application platform, and the reading distance can reach more than 10 meters.

The concept of active rfid and passive rfid is different.

Active electronic tag rfid means that the energy for tag work is provided by the battery. The battery, memory and antenna together form an active electronic tag rfid, which is different from the passive radio frequency activation method. Before the battery is replaced, the information is sent out through the set frequency band. In order to ensure the reliability of identification and battery economy, the transmission interval is generally 400 milliseconds to 800 milliseconds.
The performance of passive rfid tags is greatly affected by tag size, modulation form, circuit Q value, device power consumption, and modulation depth. Passive radio frequency tag rfid1024bits memory capacity, ultra-wide working frequency band, not only in line with relevant industry regulations, but also flexible development and application, can read and write multiple tags at the same time. Passive radio frequency tag design, no battery required, memory can be repeatedly erased and written more than 100,000 times.

Active RFID tags work differently from passive RFID tags.

Built-in batteries power active RFID tags, and the quantity and types of batteries used vary between tags.
The passive rfid tag doesn't have a battery; instead, it gets its energy from the reader. The antenna of the passive rfid tag converts the electromagnetic wave energy received into electrical energy, activates the rfid chip in the rfid tag, and communicates the data in the rfid chip when the passive rfid tag is in close proximity to the rfid reader.

The battery principle of active RFID tags is different from that of passive RFID tags.

Passive rfid: the price is cheaper than active rfid, and its lifespan is relatively long (theoretical 10 years).
Active RFID: The price is high, and the battery life is relatively short (1 to 3 years).