RFID readers can be divided into 125K, 13.56M, 900M, 2.4G and other frequency band readers according to the frequency.
125K: Generally called LF, easy to use and low in price, it can be mainly used in the management of livestock entry and exit in animal husbandry.
13.56M: Generally called HF, it has strong confidentiality and fast reading speed. The short-range 13.56mhz RFID has good confidentiality, and the long-distance 13.56mhz reads stably and fast. It is mainly used in home-school communication, personnel attendance management, entrance and exit management, books and archives anti-theft management, and government meeting sign-in.
900M: Generally called UHF, with long communication distance and good anti-collision performance, it is generally used for parking lots and logistics.
2.4G: microwave segment RFID card reader, strong penetrability.
5.8G: Microwave segment RFID card reader, used in the ETC electronic toll collection system of expressways.
First of all, it is necessary to pay attention to the frequency range of the reader device to see if it meets the frequency specification of the place where the project is used;
Second, understand whether the maximum transmission power of the reader and the matching antenna radiation exceeds the standard;
Third, look at the number of antenna ports that the reader has, and whether a multi-interface reader is required according to the application;
Fourth, whether the communication interface meets the needs of the project;
Fifth, understand the reading distance and anti-collision indicators. The reading distance indicator must specify which antenna and tag are tested; the anti-collision must specify which tags are in which arrangement and how long it will take to read them all;
Sixth, an RFID application system is not only related to the reader, but also related to the label, antenna, the material of the labeled item, the speed of the labeled item, and the surrounding environment. It is best to simulate the on-site situation before determining the equipment. Testing and verification to ensure that the product truly meets the application requirements;
Seventh, continuously test the stability of the equipment under simulated conditions to ensure long-term stable work;
Eighth, check whether the development materials meet the system development requirements. It is best to support the system you are using, and it is best to have relevant routines. If it is not supported, the development time will be very long, and the development will not even continue.