Collision avoidance support system and method by using variable action space searching method

PURPOSE: A collision avoidance support system and method by using variable action space searching method is provided to increase airline safety by improving searching efficiency by changing searching space according to a change of collision risk. CONSTITUTION: An input unit receives sailing information of theirs and others. The input unit receives sailing information about angle of entrance and angular velocity of their sailing route from gyro and magnetic compass. A calculating unit composes variable action space with a collision risk degree of theirs and others. The calculating unit calculates the optimal collision avoiding route. A marking unit marks their collision avoiding route based on electronic navigation chart.