25-08-2017, 09:32 PM
Introduction to Vibration Energy Harvesting
Vibration Energy.pdf (Size: 3.74 MB / Downloads: 202)
Beyond the batteries
• Moore’s Law: transistors doubling every one or two years!
• Batteries power density and lifespan are limited
Beyond the batteries
•Computing devices are becoming ubiquitous and pervasive!
•Power requirements must be scaled down, for size of <1cm3 the power consumption goal is below 100 μW
•Problem: batteries must be recharged/replaced and eventually disposed
WSNs have vast applications
•Environmental Monitoring
–Habitat Monitoring (light, temperature, humidity)
–Integrated Biology
•Structural Monitoring
•Interactive and Control
–RFID, Real Time Locator, TAGS
–Building, Automation
–Transport Tracking, Cars sensors
•Surveillance
–Pursuer-Evader
–Intrusion Detection
–Interactive museum exhibits
•Medical remote sensing
–Emergency medical response
–Monitoring, pacemaker, defibrillators
•Military applications and Aerospace
Benefits of Energy Harvesting
•Long lasting operability
•No chemical disposal
•Cost saving
•Safety
•Maintenance free
•No charging points
•Inaccessible sites operability
•Flexibility
•Applications otherwise impossible
Market potential
Market size of WSN’s
oThe overall wireless sensors market is estimated to grow to $4 billions by 2020 (Frost & Sullivan, 2006)
oThe worldwide ULP market reached over 200 million units by 2010.
oTemperature monitoring and vibration spectra of sensitive plant equipment is growing recently around $22m (ARC Advisory Group, 2007).
oVibration and velocity sensors and transmitters market is growing from $17.4m in 2006 to $112.5m in 2012 at a compound annual growth rate of 34.4%.