PIPages
Labs

Yang Zhang

University of California-Los Angeles, CA·Computer Science

The world now has billions of "smart" devices, and their batteries add to electronic waste. One alternative is self-sustaining devices that harvest their own power.

Fields

Computer Science

Engineering

Topics

energy harvesting

self-sustaining systems

battery-free devices

Grants
1 known grant, through Dec 2026

What they work on

  1. Identify the information and resource needs of novice and expert developers of self-sustaining, interaction-powered systems through observation of programming sessions, interviews and surveys.
  2. Create modules that harvest energy from user interactions such as button clicks and device motion, with energy profiling tools and combinable mechanisms built on a shared backbone system.
  3. Develop toolkits that guide developers in harvester selection, mechanism design, energy profiling and debugging, and evaluate them with technical tests and user studies including A/B tests and pair programming.

More about the research

This project studies a kind of harvested power that comes from how people use a device, such as pressing buttons or moving it. Such interactions are a promising power source. But they are unpredictable in timing and type, and they must be designed for users' needs rather than power goals. This makes them hard for designers to manage, especially for beginners.

Why it matters

Tools that make it easier to build devices powered by everyday user actions could reduce reliance on batteries and charging. That may cut electronic waste and the environmental footprint of smart devices. Designers who are new to self-sustaining systems would gain practical guidance on choosing harvesters, profiling energy use and debugging.

Known grants

From NIH and NSF research grants. Labs often have other funding we can't see.

Collaborative Research: HCC: Small: Toolkits for Creating Interaction-powered Energy-aware Computing Systems

NSF · Jan 2023 – Dec 2026

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The school

University of California-Los Angeles: 84 labs on PI Pages, $1.9B a year on research, 803 research doctorates a year.

More about University of California-Los Angeles

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