Introduction to Wireless Sensor Networks



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Monitoring Area

  • Introduction to Wireless Sensor Networks

Example: Precision Agriculture

  • Precision agriculture aims at making cultural operations more efficient, while reducing environmental impact.
  • The information collected from sensors is used to evaluate optimum sowing density, estimate fertilizers and other inputs needs, and to more accurately predict crop yields.
  • Introduction to Wireless Sensor Networks

Monitoring Objects

  • Introduction to Wireless Sensor Networks

Example: Condition-based Maintenance

  • Intel fabrication plants
    • Sensors collect vibration data, monitor wear and tear; report data in real-time
    • Reduces need for a team of engineers; cutting costs by several orders of magnitude
  • Introduction to Wireless Sensor Networks

Monitoring Interactions between Objects and Space

  • Wildlife Habitats
  • Disaster Management
  • Emergency Response
  • Asset Tracking
  • Health Care
  • Introduction to Wireless Sensor Networks

Example: Habitat Monitoring

  • Source: Margaret Martonosi, Princeton University
  • Introduction to Wireless Sensor Networks

Characteristics of Wireless Sensor Networks

  • Wireless Sensor Networks mainly consists of sensors. Sensors are -
    • low power
    • limited memory
    • energy constrained due to their small size.
  • Wireless networks can also be deployed in extreme environmental conditions and may be prone to enemy attacks.
  • Although deployed in an ad hoc manner they need to be self organized and self healing and can face constant reconfiguration.
  • Introduction to Wireless Sensor Networks

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