Smart sensors and communication using Internet of Things in supermarkets

Smart sensors and communication using Internet of Things in supermarkets: Sensor to Server communication

Verburg, Joseph (TU Delft Electrical Engineering, Mathematics and Computer Science)
De Winter, Niels (TU Delft Electrical Engineering, Mathematics and Computer Science)

Hoekstra, J. (mentor)
Frens, Bart (mentor)
Smets, A.H.M. (graduation committee)
Bossche, A. (graduation committee)
Marcelis, Paul (mentor)

Delft University of Technology

2017-07-03

During 9 weeks of investigation multiple solutions for implementing a communication module in a supermarket have been explored. These results led to three options which have been further researched. Bluetooth Low Energy (BLE), 433 MHz and ZigBee have been selected as the best communication protocols
for sensor to gateway communication. Chips for these protocols have been bought and for BLE and 433 MHz libraries have been developed. For the gateway and the communication to the server a Raspberry PI and Mobile Internet have been selected and these have been integrated. During the measurements we came to the conclusion that for the RFM69HCW (433 MHz) and the BLE Nano (BLE) the sleep mode did not work as specified. Resulting in high power consumption and thus worse battery life (sleep mode consumption for RFM69HCW 3.37 mA, BLE Nano 4.38 mA and for XBee 43.2 휇A). The final conclusion of this thesis is that, with the current research, XBee (ZigBee) is
the best communication protocol for communicating within a supermarket. But in further research BLE Nano and RFM69HCW can perform better if the sleep mode is improved to work according to what is specified.

IOT
Wireless
Zigbee
Bluetooth Low Energy
433MHz

http://resolver.tudelft.nl/uuid:ad97a0ab-e23d-4441-af07-005e6eed1e07

2022-07-07

Student theses

bachelor thesis

© 2017 Joseph Verburg, Niels De Winter