Ship-collision avoidance guiding system using time series graphic display

A ship collision avoidance guiding system using time series graphic display, the system comprising:

• a crossing and avoidance information providing unit configured to process a representation of a relative positional relationship with respect an own ship to ships and obstacles at sea within a predetermined range and collision possibility in a time series graph;
• a display configured to display information generated through the crossing and avoidance information providing unit;
• an alarm generating unit configured to transmit a notification for avoidance based on the information provided by the crossing and avoidance information providing unit;
• a communication unit configured to communicate with external equipment and other ships;
• and
• a control unit configured to control an overall operation and function of the ship collision avoidance guiding system,
• wherein changes in a relative distance according to a time with respect to respective ships and obstacles are represented through a time series graph and a left and right positional relationship of the respective ships is displayed to identify positions of the ships and obstacles, a crossing time, and whether the ship is to be avoided,
• wherein the crossing and avoidance information providing unit is configured to process a representation of the relative positional relationship based on information provided from an electronic chart display and information system (ECDIS) and a radar system,
• wherein the crossing and avoidance information providing unit is configured to process changes in the relative position of the ships and obstacles according to time as a graph to be displayed and the displayed navigation information includes a relative bearing angle of the other ship with respect to the own ship at a close point and a closest point, a traveling direction, a close distance, a closing time and a collision limit line representing a threshold value for avoidance, the collision limit line and displaying a left and right positional relationship between the respective ships using radar information to identify a ship having an obligation to keep out of the way,
• wherein the display is configured to display the left and right positional relationship between the ships with English characters L and R or using at least one of a color of the graph, a character, and a symbol, and
• wherein when a graph for a specific ship or obstacle is located below the collision limit line, it is determined that there is a collision risk with the ship or obstacle based on a result generated by the crossing and avoidance information providing unit,
• when a ship determined to have the collision risk is located on the left, avoidance is notified to the ship located on the left through the alarm generating unit and the communication unit, and
• when the ship determined to have a collision risk is located on the right, a processing of generating an avoidance warning to own ship is automatically performed by the alarm generating unit.