The present disclosure relates to other-ship tracking monitoring for tracking and monitoring other ships around a ship, and includes a sensor information collection unit configured to generate a wide-angle image of a sea area around an own ship, the wide-angle image including an other ship, a tracking camera unit configured to track the other ship and capture an enlarged image of the other ship, separately from the wide-angle image, and a control unit configured to control the tracking camera unit by considering a display position of the other ship appearing in the enlarged image.

A control apparatus for an outboard motor (4, 5) mounted on a hull (2), comprises a control unit (30, 40) that controls an attitude of the outboard motor (4, 5) with respect to the hull (2), and a detection unit (47, 49) that detects a counter electromotive force generated by an attitude change of the outboard motor (4, 5) due to an external force applied on the outboard motor (4, 5). The control unit (30, 40) determines that an object has collided with the outboard motor (4, 5) when the counter electromotive force that exceeds a predetermined threshold is detected.