Thermoelectric powered autonomous wireless sensor module for temperature monitoring

Research output: Chapter in Book/Report/Conference proceedingsConference proceedingpeer-review

Abstract

Wireless sensor networks are frequently used to monitor temperature and other manufacturing parameters in recent years. However, the limited battery life posts a constraint for large sensor networks. In this work, thermoelectric energy harvester is designed to effectively convert the heat into electrical energy to power the wireless sensor node. Bismuth telluride thermoelectric modules are optimized for low temperature conditions. Charge pump and switching regulator based power management module is designed to efficiently step up the 500mV thermoelectric voltage to 3.0V level for wireless sensor nodes. This design employs electric double-layer capacitor based energy storage with considerations on practical wireless sensor node operation. The implemented energy harvester prototype is proposed for Tyndall wireless sensor system to monitor temperature and relative humidity in manufacturing process. The prototype was tested in various conditions to discover the issues in this practical design. The proposed prototype can expect a 15 years operative lifetime instead of the 3-6 months battery lifetime.

Original languageEnglish
Title of host publicationAdvanced Research on Mechanical Engineering, Industry and Manufacturing Engineering
Pages978-982
Number of pages5
DOIs
Publication statusPublished - 2011
Event2011 International Conference on Mechanical Engineering, Industry and Manufacturing Engineering, MEIME2011 - Beijing, China
Duration: 23 Jul 201124 Jul 2011

Publication series

NameApplied Mechanics and Materials
Volume63-64
ISSN (Print)1660-9336
ISSN (Electronic)1662-7482

Conference

Conference2011 International Conference on Mechanical Engineering, Industry and Manufacturing Engineering, MEIME2011
Country/TerritoryChina
CityBeijing
Period23/07/1124/07/11

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 9 - Industry, Innovation, and Infrastructure
    SDG 9 Industry, Innovation, and Infrastructure

Keywords

  • Micro-thermoelectric generator
  • Temperature monitoring
  • Wireless sensor network

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