Phones and mobile devices.

Sensors that use less energy could leave more time between phone charges.

4.61%

Less whole-phone power

Phone energy example

Sensing uses 20% of phone energy; the other 80% stays unchanged. The model keeps the same sensing output and work rate and includes the extra energy needed to plan readings.

4.83%

Longer battery life

Same usable battery and job rate.

The longer runtime uses the same usable battery.

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Design details

For teams developing phones and battery-powered mobile devices.

What the study covers.

The same radio and sensing service
Size, weight, heat and processing
Battery life and the cost of fitting the design into a phone

Heat, cooling and size

HEAT & COOLING

4.61% less whole-phone input power

Sensing uses 20% of the phone’s energy. Its best saved case uses 23.04% less task energy; the other 80% stays fixed. Energy leaving in forms other than heat and changes in stored energy stay the same.

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