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Real-World Energy Measurements of a Wireless Mesh Network

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Real-World Energy Measurements of a Wireless Mesh Network

  1. 1. Energy Efficiency in Large Scale Distributed Systems Real-World Energy Measurements of a Wireless Mesh Network A. Jamakovic, D. Dimitrova, M. Anwander, T. Macicas, T. Braun, J. Schwanbek, Th. Staub, B. Nyffenegger Universität Bern, Switzerland braun@iam.unibe.ch, cds.unibe.ch
  2. 2. Overview > Introduction — Environmental Monitoring Area — Wireless Mesh Network Topology at Rhone Valley — Environmental Monitoring Scenarios > Solar-Powered Wireless Mesh Nodes — Solar-Powered Wireless Mesh Node Hardware and Software — Solar Energy Harvesting > Energy Harvesting and Consumption Measurement Scenario > Measurement Results — Daily/Weekly Battery and Solar Panel Voltage Measurements — Relationship of Battery and Solar Panel Voltage — Battery Load and Mesh Node Consumption — Solar Panel / Mesh Node Voltage and Battery / Mesh Node Current > Conclusions and Outlook EE-LSDS, Vienna, April 24, 2013 Torsten Braun: Real-World Energy Measurements of a Wireless Mesh Network 2
  3. 3. Environmental Monitoring Area Sion Sierre Tseuzier storage lake Plaine Morte glacier EE-LSDS, Vienna, April 24, 2013 3 Torsten Braun: Real-World Energy Measurements of a Wireless Mesh Network
  4. 4. Wireless Mesh Network Topology at Rhone Valley Sion Sierre EE-LSDS, Vienna, April 24, 2013 4 Torsten Braun: Real-World Energy Measurements of a Wireless Mesh Network
  5. 5. Environmental Monitoring Scenarios EE-LSDS, Vienna, April 24, 2013 Torsten Braun: Real-World Energy Measurements of a Wireless Mesh Network 5
  6. 6. Solar-Powered Wireless Mesh Nodes EE-LSDS, Vienna, April 24, 2013 6 Torsten Braun: Real-World Energy Measurements of a Wireless Mesh Network
  7. 7. Wireless Mesh Node Hardware and Software > IP66 steel enclosure > 1-2x Alix 3D2 system boards > 1x Alix 6F2 system board > 1-4x 801.11n mini PCI cards > 1x 801.11g mini PCI card > 1x UMTS mini PCI-Express card > I2C twin relay > 2x2 MIMO, 25dBi, dual polarization panel antennas for 5.8 Ghz > ADAM Linux running Optimized Link State Routing EE-LSDS, Vienna, April 24, 2013 Torsten Braun: Real-World Energy Measurements of a Wireless Mesh Network 7
  8. 8. Solar Energy Harvesting > 90 Watt solar panels, voltage: 18.75 V > Panels supply lead acid battery (78 Ah) and wireless mesh node EE-LSDS, Vienna, April 24, 2013 Torsten Braun: Real-World Energy Measurements of a Wireless Mesh Network 8
  9. 9. Energy Harvesting and Consumption Measurement Scenario > Energy measurements by charge controller — in winter (nodes 3, 7) — In summer (nodes 7, 8) EE-LSDS, Vienna, April 24, 2013 Torsten Braun: Real-World Energy Measurements of a Wireless Mesh Network 9
  10. 10. Voltage Measurements During a Summer Day EE-LSDS, Vienna, April 24, 2013 Torsten Braun: Real-World Energy Measurements of a Wireless Mesh Network 10
  11. 11. Voltage Measurements During a Winter Day EE-LSDS, Vienna, April 24, 2013 Torsten Braun: Real-World Energy Measurements of a Wireless Mesh Network 11
  12. 12. Voltage Measurements During a Summer Week EE-LSDS, Vienna, April 24, 2013 Torsten Braun: Real-World Energy Measurements of a Wireless Mesh Network 12
  13. 13. Relationship of Battery and Solar Panel Voltage During Summer EE-LSDS, Vienna, April 24, 2013 Torsten Braun: Real-World Energy Measurements of a Wireless Mesh Network 13
  14. 14. Relationship of Battery and Solar Panel Voltage During Winter EE-LSDS, Vienna, April 24, 2013 Torsten Braun: Real-World Energy Measurements of a Wireless Mesh Network 14
  15. 15. Battery Load and Mesh Node Consumption During Summer EE-LSDS, Vienna, April 24, 2013 Torsten Braun: Real-World Energy Measurements of a Wireless Mesh Network 15
  16. 16. Battery Load and Mesh Node Consumption During Winter EE-LSDS, Vienna, April 24, 2013 Torsten Braun: Real-World Energy Measurements of a Wireless Mesh Network 16
  17. 17. Solar Panel / Mesh Node Voltage and Battery / Mesh Node Current EE-LSDS, Vienna, April 24, 2013 Torsten Braun: Real-World Energy Measurements of a Wireless Mesh Network 17
  18. 18. Conclusions and Outlook > Energy harvesting and consumption data in a real wireless mesh deployment > Results show good combination of battery and solar panel. > Energy supply has been sufficient in our challenging deployment. > Certain nodes need more energy, data are valuable for solar panel dimensioning > Possible control of mesh node based on available energy and weather prediction ? EE-LSDS, Vienna, April 24, 2013 Torsten Braun: Real-World Energy Measurements of a Wireless Mesh Network 18
  19. 19. Thanks for your Attention > More information — cds.unibe.ch and a4-mesh.unibe.ch — slideshare.net/torstenbraun — braun@iam.unibe.ch Torsten Braun: Real-World Energy Measurements of a Wireless Mesh Network EE-LSDS, Vienna, April 24, 2013 19

Editor's Notes

  • location of area under investigation south faced hill-slope of Bernese Alps between Sion and Sierre

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