Timely waking up the operators in the digital main control rooms of nuclear power plants from fatigue can effectively prevent accidents in nuclear power plants. During the operator's work, real -time evaluation of the fatigue state of operators is very important. Because the operators needs to constantly receive and process information from the computer screen through their eyes, it is easy to make their eyes tired and causes mental fatigue to the operators, so we propose to conduct fatigue detection for the operators. By focusing on the state of eyes, combined with the state of mouth and head...