Engineers at Canada’s University of Waterloo are developing AI-powered exoskeleton legs that can walk autonomously.
The system captures a user’s surroundings through a camera. Computer vision and deep learning algorithms then analyze the scene to determine the best movements for the upcoming terrain.
“Our control approach wouldn’t necessarily require human thought,” said project lead Brokoslaw Laschowski in a press release. “Similar to autonomous cars that drive themselves, we’re designing autonomous exoskeletons that walk for themselves.”
The devices could give people with impaired mobility a more natural control system than current exoskeletons, which are typically operated through smartphone apps or joysticks.
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“That can be inconvenient and cognitively demanding,” said Laschowski. “Every time you want to perform a new locomotor activity, you have to stop, take out your smartphone and select the desired mode.”
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The researchers overcame these limitations by fitting exoskeleton users with wearable cameras. AI software then processes the video to spot stairs, doors, and other features in their surroundings.
The system still needs further refinement before the exoskeletons are fully-functional. The next stage of the project will involve sending instructions to motors so that the legs can operate across uneven terrain and avoid obstacles. The researchers also plan to boost their battery lives by using human-motion to self-charge the devices.
But the system could prove far more convenient than most existing exoskeletons — as long as it’s not too easy to hack.
You can read more about the project in the journal IEEE Transactions on Medical Robotics and Bionics.
You can read the latest paper on the ExoNet project here on the preprint server bioRxiv.
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