Design Of Energy Harvesting Powered Wireless Sensor Network For Machinery Health Monitoring

Chen, Wei Ping (2018) Design Of Energy Harvesting Powered Wireless Sensor Network For Machinery Health Monitoring. Project Report. UTeM, Melaka, Malaysia. (Submitted)

Text (24 Pages) Design Of Energy Harvesting Powered Wireless Sensor Network For Machinery Health Monitoring.pdf - Submitted Version Download (181kB)

Abstract

Wireless Sensor Networks or WSN mainly consists of huge amount of miniature sensor nodes or SNs with certain limitation of computer resources which capable for sensing, gathering, data processing and wireless communication. Since most of the SNs are powered by traditional batteries, it can be inconvenient due to their limited lifespan. In this project, a thermoelectric generator (TEG) is used as thermal energy harvester with the intention to extend the SN lifespan. Since the output voltage produced by this TEG is insufficient to power up the node, a DC-DC step-up converter circuit based on MAX757 integrated circuit is designed to step up the output voltage produced from TEG up to 3V. Besides, the sensor node is programmed and configured by using the MEMSIC Mote View software. The SN consumed an average power of about 25mW in the active mode and 60μW when it is in sleeping mode. This node is able to transmit data whenever there is at least a temperature gradient of 15℃ between the hot and cold surface of TEG. This project is conducted indoor by utilizing two SNs with one of them is powered by traditional battery and the other one is powered by TEG. The measured data is collected for every 10 minutes and displayed in Mote View, where the data is analyzed and compared.

Actions (login required)

View Item