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Human Motion Energy Harvester

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.

Human Motion Energy Harvester

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., power 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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