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Human Motion Energy Harvester
A non-resonant 2-D energy harvesting method that effectively captures, converts, and stores motion of body movements.
Technology overview
Harnessing ambient energy from human motion holds great potential as a reliable and sustainable energy source for wearable and portable electronic devices. However, the development of energy-harvesting devices faces several technological challenges, primarily related to the irregular frequency and amplitude of body movement, as well as limitations in parasitic damping and harvesting mechanisms. RP has developed a non-resonant 2-D energy harvesting method using hybrid energy harvesting mechanisms that can overcome the existing challenges. The design is a complete package with an integrated energy storage and power management circuit.
Technology features
The unique design configuration:
Minimise the impact of damping, ensuring kinetic motion of body movement is effectively captured, converted, and stored.
Capture energy from a wider range of movement compared to the typical kinetic motion harvester
Functions at a low-frequency regime (<10Hz) in non-resonant mode to fully harness the energy from human motion.
Generates a power density of 4.8µW/cm3 at acceleration of 1g and frequency of 4Hz.
Potential applications
Kinetic energy from the movement of living/ non-living objects - for e.g. powering portable electrical devices
Blue energy - for e.g. to power offshore sensors
Ambient energy - for e.g. to power wireless IoT sensor networks in remote areas
Benefits
Portable size at 6cm (L) x 6cm (B) x 4.5 cm (H)
Can be resized and scaled up according to the application with customisable component selection.
Reduce the need for regular battery replacement
Promotes body movements
Sustainable green energy
Commercialisation
The technology is available for licensing and deployment.
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