Implementation of dialogue system for intelligent service robots

This paper presents a dialogue system for intelligent service robot application. The dialogue system consists of an audio speech recognition module, a text-to-speech conversion module, and a dialogue manager for supervision of timely conversion of input command to output robotic service. The dialogue manager is implemented in the framework of task supervisor for HRI(Human-Robot-Interface) module and makes use of finite state machine module for each robotic service. Since the number of services generated grows larger as the complexity of robotic task increases, the set of finite state machine modules is designed in compact modular form in the dialogue manager enhancing the capability of intelligent service robot handling various missions. The effectiveness of proposed dialogue system is demonstrated by applying it to information delivery service of weather and news, scheduling service, and entertainment game service for robotic user.