Object identification and tracking are applications of Radio Frequency Identification (RFID). Stores can use object identification and tracking to determine the stock levels of an item or to prevent theft. Our group is working on designing an RFID system to identify objects. This specific system could be useful to prevent theft in a store.
Specifications
The specifications of this project include having an operating distance of about 3 meters and being able to operate in an environment with temperatures between -40 and 85 degrees Celsius. This temperature range includes various temperatures between freezing and extreme heat. The transceiver system should be able to send and receive radio signals from paper tags of a size 5.3 by 3.3 cm. These radio signals would be in the Global Frequency band at around 915 MHz. Using frequencies in the Global Frequency band rules out the need to get a license for this project. To accomplish these specifications, the system will also need a supply voltage between 3.0 and 3.6 V.