Abstract
Robust communication systems between fire-fighting robots and remote operators are investigated. The communication system consists of two components; a digital packet data communication system and an analog image communication system. For a reliable data packet communication system, we adopted the commercial CDMA (Code Division Multiple Access) network architecture. Using the CDMA modules, it is possible to transfer serial data after a connecting procedure that is specified by the network service provider. Digital packet data communication systems transfer data packets back and forth in order to control fire-fighting robots and to monitor their status. Remote operators can view a video display of robot surroundings via an analog image communication system.
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