We got the inspiration for Human Chargers from working with electromyography (EMG) with Dr. David Behm (School of Human Kinetics, Memorial University of Newfoundland). We saw that one was able to measure the level of electromyography signal outputting from muscles, and we wondered if it would be possible to harness this energy and store it for practical use. Since ΒΌ of humanity suffers from lack of access to electricity, we realized that this technology would be empirical to making energy more accessible, as well as renewable and eco-friendly.

What it does

Human Chargers collects the generated electricity through the depolarization of muscles and amplifies it to a usable level, through clothing items. That energy is stored in a power bank for later use.

How we built it

Our first prototype was built using circuits analysis, rectifiers, and operational amplifiers to amplify the weak signals from muscles and store them into a power bank for proper use.

How we tested it

We tested the circuit using an online circuit simulator with the appropriate parameters based on research we have conducted about EMGs. The circuit was tested multiple times accordingly until we managed to get the desired results of the amplified signal.

Challenges we ran into

Properly amplifying and rectifying the electric signal was the toughest challenge. Since the muscle produces an AC signal, we needed to rectify it and make it a stable DC signal for storing it and later utilizing it on other connected devices. Amplifying the signal was also an issue as human muscles produce 0.4mV to 0.7mV which is too low for any modern device.

Accomplishments that we're proud of

We are most proud of coming up with this amazing idea which will help humanity move a step closer to having a better and greener lifestyle, not to mention helping our mother Earth in the process as well.

What we learned

We learned a lot about the potential that human bodies have. Through this 3 day Hackathon, we learned how to think outside the box and approach real worlds problems from a different perspective.

What's next for Human Chargers

In the future, we aim to include other wearable technologies such as thermoelectricity, piezoelectricity, and solar electricity (Luminescent Solar Concentrators). Through the addition of these technologies, we will be able to harness energy through body heat, movement, and light. This will ensure more electricity is being generated through our clothing, and push Human Chargers to reach the height of wearable renewable energy sources.

Built With

  • arduino
  • canva
  • electromyography
  • emg
  • multisim
  • orcad
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