Chinese scientists have announced the creation of a brain-computer interface, which should simplify the work of astronauts. The claimed accuracy of the device exceeds 99%. The development is reported by the South China Morning Post.
A Chinese space program research team has announced the creation of a new brain-computer interface to control a robotic arm on a space station. Previously, astronauts used a joystick and keyboard to control the robot. However, as scientists note, such control is not always convenient under weightless conditions.
According to the developers of the device, previously existing control technologies using brain impulses did not have the necessary accuracy. Their efficiency ranged from 40% to 80%, which created a high risk of erroneous actions, unacceptable in the work of astronauts. The new development has shown in experiments an accuracy of over 99%.
To control the robot, a person using a neural interface looks at an animated image on a computer screen. Each part of the robotic arm flashes at a unique rate. Sensors record changes in brain activity when a person’s eye stops at a certain point. To improve the accuracy of brain wave recognition, scientists used AI.
Testing the device with 35 volunteers showed a control accuracy of 99.07%, scientists report. Moreover, even among 27 volunteers who had no experience in controlling a robotic arm, the results were almost as high – 98.9%.
“The neural interface is very easy to use,” the developers note. “Even an untrained person in our helmet demonstrates high precision and speed of control.”