RFID is a flexible application technology that is easy to manipulate, simple and practical and particularly suited for automated control. Can be free to work in various harsh environments: the short distance radio products are oil stain and dust pollution and other harsh environment, can replace the bar code, such as tracking objects in the factory assembly line; long distance RF products used for traffic, the recognition distance of up to tens of meters, such as automatic charging or identifying vehicles etc.. Radio frequency identification system mainly has the following advantages:
Easy to read: data reading requires no light source, or even through an external package. The effective identification distance is bigger, when using active label with battery, the effective identification distance can reach more than 30 meters;
The recognition speed is fast. When the tag enters the magnetic field, the reader can read the information immediately, and can process multiple tags simultaneously to realize batch identification;
Large data capacity: two-dimensional bar code data the maximum capacity (PDF417), the most they can store 2725 numbers; if it contains letters, storage will be less; the RFID tag can according to the needs of users to expand the number of 10K;
Long service life, wide range of application: the radio communication mode, so that it can be applied to dust, oil and other high environmental pollution and radioactivity, and the sealed packaging makes its life considerably more than the printed barcode;
Tag data can be dynamically changed: the programmer can write data to the tag, giving the RFID tag the ability to interactively move the data files, and writing time is less than the print bar code;
Better security: not only can be embedded or attached to products of different shapes and types, but also password protection can be set for reading and writing tag data, thus having higher security;
Dynamic real-time communication: tag to ~ 100 times per second and 50 frequency and the reader to communicate, so long as the RFID tag attached to the object appear in the effective range of recognition within the reader, will be able to track and monitor the dynamic of its position.