Product warranty

Failure and handling

Common failures of readers and solutions

Basic operation principle

Microwave radio frequency automatic identification (MRFID) is a new technology which has been developed and applied rapidly in recent years. It is a new method to automatically collect the property, state, number and other characteristic data of the object in order to realize digitization and informatization. It can be widely used in the automatic identification of people, animals and objects.

Electronic label packaging media

The optimal antenna length of the tag is related to the case of the encapsulated or embedded non-conductive material (the dielectric constant of the non-conductor is generally greater than the dielectric constant in the air, resulting in the effective wavelength in the medium is shorter than the effective wavelength in the air).

Anti-counterfeiting of electronic labels

Each electronic tag has a globally unique ID number, which can be used to facilitate anti-counterfeiting, but the system needs to store and remember the ID number of each legitimate electronic tag.

Electronic tag placement

Attaching electronic tags to objects is a problem worth studying. Because the material of the object is different, the application situation is different, and so on, all need different electronic label paste way, which needs to do a lot of practical experiments before the specific application. But the following two principles are certain:

Principle of antenna

The reader developed by our company requires the external antenna to be short-circuit antenna, that is, the antenna with zero dc impedance. The following indexes are mainly considered in the selection of microwave antenna:

Antenna polarization direction

An important index for choosing microwave antenna is the polarization direction of the antenna. There are mainly three choices as follows:

Reader Range

The distance between read and write tags is affected by the performance of the tag, the output power of the reader, and the gain of the selected antenna. Because writing requires higher microwave energy than reading, the distance to read the tag is twice or more than the distance to write the tag. In addition, the performance index given by the product is measured under ideal conditions, actual use due to environmental interference and other factors, the actual index should be 30% off.