Business
WiMi Developed an Assistive Robotic Technology and a Control Approach Based on Hybrid BCI
BEIJING, Sept. 5, 2023 /PRNewswire/ -- WiMi Hologram Cloud Inc. (NASDAQ: WIMI) ("WiMi" or the "Company"), a leading global Hologram Augmented Reality ("AR")
About this update from Wimi Hologram Cloud Inc.
[{"type":"text","content":"BEIJING, Sept. 5, 2023 /PRNewswire/ -- WiMi Hologram Cloud Inc. (NASDAQ: WIMI) (\"WiMi\" or the \"Company\"), a leading global Hologram Augmented Reality (\"AR\") Technology provider, today announced that it developed an assistive robotic technology and a control approach based on hybrid BCI. The technology combines various technological components such as an eye-tracker, a device for recording EEG signals, a webcam, and a robotic arm to enable the user to accurately control the movement of the robotic arm by means of hybrid gaze BCI.\nThis assistive robot control technology will enable users to control the movement of the robotic arm end-effector through hybrid BCI, enabling more precise and flexible manipulation. The technology has been developed to improve the robot's grasping performance, with a focus on improving its reaching performance so that grasping tasks can be automated. To achieve this goal, the development team divided the task into three key phases and leveraged the natural human visual motor coordination behavior.\nFirst, the user specifies the target location of the assisting robot with a hybrid BCI in discrete selection mode. By observing the virtual rectangle appearing around the target, the user confirms that the target position has been successfully communicated to the assistive robot. Subsequently, it automatically switches to the continuous velocity control mode and enters the second phase. The user uses the hybrid BCI to move the robotic arm end-effector sequentially while avoiding collisions with obstacles. Once the end-effector enters a pre-specified area directly above the target object, it automatically stops and hovers over the target. Finally, the pre-programmed program is executed. The end-effector moves downward, adjusts the gripper orientation according to the direction of the target in the workspace, and successfully grabs the object. This design effectively reduces the number of degrees of freedom and allows the user to reach the object in three dimensions.\nOne of the key points of the technology is the application of hybrid BCI. This technology combines vision tracking and brain-computer interface technologies to enable control of the robot through discrete selection mode and continuous velocity control mode. In the discrete selection mode, the user inputs the target position by gazing at it,...