Flexible smart tag for cold chain temperature monitoring

This paper describes development of flexible RFID smart tag for temperature monitoring. The system is based on a single chip solution working at 13.56 MHz according to ISO 15693. This standard is supported by Android API and Android smartphones with NFC periphery. The developed prototype of the smart tag was realized by hybrid technology combining printed RFID antenna with the SMD chip and flexible battery assembled using conductive adhesive. The size of the smart tag complies with the ISO/IEC 7810 Card size ID-1 (85.60 mm x 53.98 mm). Measurement settings and data read-out is realized by software developed for NFC-equipped mobile devices with Android operating system. The whole system represents a cost effective solution to the cold chain temperature monitoring of sensitive commodities within the logistic chain.