Integração de leitor NFC de celular com banco de dados distribuído Hyperledger Iroha por comunicação MQTT

Abstract

RFID technology is widely used in the business environment, as it facilitates the traceability of the movement of items and assets in stock and their identification, but there is a problem in sharing information between the participating organizations of the process causing data divergence between them. Thus, this work aims to propose a way to minimize this inconsistency with the implementation of a distributed database through the Hyperledger Iroha blockchain, which allows any company, if they obtain the necessary permissions, to be able to remotely access the information of their items. To do this, it was necessary to model the processes through a MQTT connection with a cellphone NFC RFID tag reader and the Iroha distributed database. The result was a mobile application that consults the information from the blockchain hosted on localhost based on NFC tag reading and writing.