♦ Effective support of monitoring navigation condition The system linked with navigation sensors and relevant equipment improves the reliability and applicability of navigation data, and realizes the data sharing onboard. The system provides the measurement for navigation alarm monitoring and transfer to backup officer, if an officer of watch would be in accident. ♦ Applicability for automatic tracking control The automatic tracking control, that has the fail-safe function on considering the environmental such as abnormal sensor situation and current affection, is utilized. The control that is applied for the vessels of various types to automatically maneuver will be effect for economical operation ♦ Information concentration The information such as alarm indicating collision / grounding avoidance or failure of components shows on the information screen with concentrated in the system. This function will be effect to reduce the stress in watch, also capable to take a quick action in emergence scene.