Implementation of RFID in Inventory Systems

This project focuses on the development of an active RFID network for warehouse
management. The traditional RFID models will be replaced with LoRa® modules that are
capable of transmitting data across long distances. Unlike most commercial radio
modules, LoRa® radios use the Chirp spread spectrum, which is highly power efficient.
Hence, LoRa® modules are capable of lasting more than a year without the need for a
battery replacement. LoRaWAN™ protocol is the communication architecture built for
LoRa® radios to exchange information. The LoRaWAN™ consists of three different
classes, the A class, the B class, and the C class. This project will be using the A class to
develop a communication network between end nodes and a common gateway. The
RFID tags will be the end nodes that send information to the central hub on a timely
basis, forming a star network. The information sent will contain the chip’s serial number,
sensor information and header packets for the radio. When a message is received by the
gateway, the gateway uses the header packet to identify the sender. The gateway then
uploads the accumulated data to the cloud server using Wi-Fi. The cloud server will
assort the information packets collected from the gateway and pass the information to an
application server. The application server is a directory that uses the chip’s serial number
to identify and confirm the presence of the stock in the warehouse. The dashboard that
will be developed for this project will help warehouse managers view the status of their
stocks. If a certain package that possesses the RFID tag is taken outside of the defined
parameters of the warehouse the dashboard will produce an alert. Once the prototypes are
tested and are operational, a new circuit board will be designed and printed for the end
nodes.