Acoustic voice communication with expert systems supporting electric power system operation

The appearance of expert systems supporting the operation of electric power systems was polished by adding a bi-directional acoustic dialogue interface. The appertaining subsystems present the proposals of the expert system for switching, setting or other actions in natural/switching-language synthetic voice form (in addition to the original screen display) and recognize the operators' spoken answers (e. g. confirmation/rejection of operations or request for explanation). The operators can keep concentrated on the operational surface of the power system without frequently swinging over to the man-machine interface of the expert system, thus being able to more continuously observe and understand the context and reactions of the operations performed.