RFID (Radio Frequency Identification) is a remote storage and data collection technology based on the use of radio waves, that uses devices called tags—little labels without an external power source that can store information giving a unique identity to the product it is attached to. The tags, having an integrated circuit (chip) and an antenna, receive information wireless when they enter an area irradiated by an RFID antenna. Through that supply the tag is connected and establishes a communication with the reader, through the antenna, enabling in this way the recording and/or reading of its memory. The reader transmits the collected information for an RFID software that manages the system.
The natural characteristics of radiofrequency enable to read simultaneously a great quantity of units and to attach RFID tags inside the units to be identified as the radio waves can go through the package material.
Besides the RFID tag, some solutions have the unique numeric code printed visibly enabling the validation of the product origin and traceability by the patient.