The invention discloses a method and a
system of combining three-dimensional line-of-
sight tracking and brain-computer interface technology to control a
manipulator to grasp an object. A process thereof includes: collecting line-of-
sight signals of a user by an eye tracker, sending data to a controller, calculating three-dimensional coordinates of a
gaze point by the controller, and sending the same to the
manipulator; and at the same time, collecting human-brain electroencephalogram
signal changes by an electroencephalogram helmet, sending the same to the controller, decoding user motion imagination and relaxation status by the controller, and thus triggering grasping and releasing action of the
manipulator on the
gaze object. According to the method and the
system, the dual advantages ofhuman line-of-
sight and mind control are exerted, the deficiency that existing 2D line-of-sight tracking technology must rely on a displayer is overcome at the same time, intuitive human-
robot interaction can be carried out in a real scene, assisting or rehabilitating manipulators can be provided for paraplegic / hemiplegic patients, movement-inconvenient elderly persons and the like by applying the
system of the invention, and autonomy thereof is improved or
rehabilitation is helped in everyday life.