Is broadcast power suitable for recharging robots?
The last time I checked ASIMO's battery pack only had enough juice for something like 30 minutes of continuous operation & then it has to plug in & recharge which isn't really that useful.
I'd like my free range robots to have a little more up-time, somewhat less down-time & not have to worry so much about staying close to a suitable power socket.
So taking a page out of (the original box set) Gamma World's book I'm thinking of broadcast power.
The requirements
The transmission must be omnidirectional.
Transmitting antennas of (at most) similar size to a commercial radio station antenna.
Receiving antennas of 1 foot or less.
Safe for people to live inside the area served (so microwave frequencies are probably out).
Sufficient power to charge at the very least a car battery over a period of hours.
Assuming a suitable frequency is given over to this & ignoring existing international agreements & national laws regarding radio transmissions.
- Could a suitably small* Rectenna (assuming a suitable broadcast facility within range) provide suitable power levels to recharge a humanoid robot like ASIMO.
A subsidiary question would be what sort of range would a transmitter have within which adequate power would be received.
*We want some space for a battery as well so up to half the size of ASIMO's current battery.
This post was sourced from https://worldbuilding.stackexchange.com/q/135589. It is licensed under CC BY-SA 4.0.
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