Environment controller for the disabled based on brain electric signal

The utility model relates to an environment controller for the disabled based on brain electric signal, belonging to the biomedical engineering technical field. The utility model consists of a brain conduction electrode, a brain-computer interface controller, a personal computer and a control software, wherein, the brain conduction electrode is connected with the input port of the brain-computer interface controller which is connected with the personal computer by a serial port, the output port of the personal computer is connected with a display and a loudspeaker, brain electric signals are inputted into the brain-computer interface controller by the brain conduction electrode, the signals are preprocessed by the brain-computer interface controller and are transmitted into the personal computer, and then the personal computer analyzes the evoked brain electric signal, the control instructions are issued respectively by a sound card and the serial port after the solution is obtained, thereby the interface controller can control electrical apparatus after receiving the control instructions from the personal computer. The utility model can help the thinking normal persons who have dysfunctions to express the inner worlds to the outside, exchange with and control the outside environment, and also can help the healthy persons to control the outside environment under the exceptional circumstances. The utility model has the advantages of convenient use, stable control and high recognition rate, and causes that the brain electric signals can be expressed by the language.