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Neuromorphic chip dramatically reduces power requirements for rolling robot

June 23, 2022
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Neuromorphic chip dramatically reduces power requirements for rolling robot

Credit: Science Robotics (2022). DOI: 10.1126/scirobotics.abk2948

A team of researchers at Tsinghua University’s Center for Brain-Inspired Computing Research in Beijing, China, has developed a neuromorphic chip that can reduce the power consumption of a cat-and-mouse-type rolling robot by approximately half, compared to a conventional NVIDIA chip designed for AI applications. In their paper published in the journal Science Robotics, the group describes design concepts they used to build the chip and how well it worked when tested.

As AI applications mature, they become more complex and require more power to run, which can be a problem for autonomous robots working in the field. Most of these systems are based on the use of neural networks. In this new effort, the researchers believed that building a chip with similar abilities but based on neuromorphic computing technology would use far less power. They built a neuromorphic chip called TianjicX and put it in a small rolling robot called Tianjicat.






Credit: Science Robotics (2022). DOI: 10.1126/scirobotics.abk2948

The chip was imbued with spatiotemporal elasticity that allowed for adaptive allocation of its resources and also the scheduling of multiple tasks (the robot had to be able to keep track of the mouse and chase it, while at the same time processing and responding to information about obstacles). It also had a high-level module that bridged the gap between the requirements given and the physical architecture of the robot.

Tianjicat was then programmed to follow a target and avoid running into obstacles using data from onboard sensors. The target in this case was a rolling, remote-controlled toy with a cartoon mouse affixed to its top. The researchers referred to it as a cat-and-mouse challenge.

The researchers found the mechanical cat quite capable of chasing the mouse while avoiding obstacles. It also was able to catch the mouse. Tianjicat used just over 50% less power than an identical NVIDIA chip-based robot. And they also found that their neuromorphic chip-based robot had markedly reduced latency—79 times less than the NVIDIA based system, allowing the robot to make decisions much faster.


A neuromorphic computing architecture that can run some deep neural networks more efficiently


More information:
Songchen Ma et al, Neuromorphic computing chip with spatiotemporal elasticity for multi-intelligent-tasking robots, Science Robotics (2022). DOI: 10.1126/scirobotics.abk2948

© 2022 Science X Network

Citation:
Neuromorphic chip dramatically reduces power requirements for rolling robot (2022, June 16)
retrieved 23 June 2022
from https://techxplore.com/news/2022-06-neuromorphic-chip-power-requirements-robot.html

This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no
part may be reproduced without the written permission. The content is provided for information purposes only.

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