Abstract: A marine vessel includes a vessel body including a navigation light, an imager provided in a vicinity of or adjacent to the navigation light, and a light shield provided between the navigation light and the imager so as to block light from the navigation light to the imager.

Abstract: A boat includes a propulsion device that generates, by driving of an engine, a propulsive force to propel a boat body, a trim changer that changes a trim angle of the boat body, a trim actuator that drives the trim changer, and a controller configured or programmed to control operation of the trim actuator based on a value corresponding to a change in a boat speed.

Abstract: A marine vessel display device includes an imager that images surroundings of a vessel body, an image processor that generates a bird's-eye view image based on images captured by the imager, a display provided in the vessel body and that displays the bird's-eye view image, and a controller. The controller is configured or programmed to perform a control to switch an image displayed on the display from the bird's-eye view image to an object image obtained by imaging in a direction toward an object from the vessel body based on object information.

Abstract: An imaging device that reduces differences between a bird's eye image and an actually measured distance includes imaging cameras mounted on a ship to capture peripheral images of the ship and combines the peripheral images captured by the imaging cameras to create the bird's eye image as a composite image. The imaging device includes an auxiliary camera adjacent to at least one of the imaging cameras, and a distance calculator that calculates a distance in a lateral direction using the auxiliary camera and the at least one of the imaging cameras adjacent to the auxiliary camera.

Abstract: An imaging system for a ship includes cameras mounted on the ship and spaced apart at a predetermined interval, and a controller that combines peripheral images of the ship captured by the respective cameras to create a simulated bird's eye image. Adjacent ones of the cameras are located at positions and angles so that the peripheral images include a common portion of the ship. The controller performs a calibration process to adjust areas of the peripheral images to be used for the bird's eye image based on a calibration index located at a portion of the ship and included in the common peripheral images.

Abstract: A marine vessel includes a hull including a cabin, an imager that images a field-of-view shielded region, which is a region in which a marine vessel operator's field of view is obstructed when the marine vessel operator located on an operation seat provided inside the cabin looks around an outside of the marine vessel in a horizontal direction, and a display provided at a position visible from the operation seat and that displays a field-of-view complement image, which is an image of the field-of-view shielded region captured by the imager.

Abstract: A boat includes a propulsion device that generates, by driving of an engine, a propulsive force to propel a boat body, a trim changer that changes a trim angle of the boat body, a trim actuator that drives the trim changer, and a controller configured or programmed to control operation of the trim actuator based on a value corresponding to a change in a boat speed.

Abstract: A server system includes a communicator, a storage, and a controller. The controller is configured or programmed to receive positional information of a watercraft that a user of a wireless communication terminal is aboard and propulsion device information from the wireless communication terminal through the communicator. The propulsion device information indicates a type of a propulsion device on the watercraft. The controller creates cruise trajectory information and stores the created cruise trajectory information in the storage based on the positional information of the watercraft in association with the type of the propulsion device on the watercraft. The controller determines a frequency at which cruise trajectories of the watercraft match the cruise trajectories based on the cruise trajectory information in the storage. The controller creates cruise route information in association with the type of the propulsion device on the watercraft.

Abstract: A marine vessel includes a vessel body including a navigation light, an imager provided in a vicinity of or adjacent to the navigation light, and a light shield provided between the navigation light and the imager so as to block light from the navigation light to the imager.

Abstract: A marine vessel display device includes an imager that images surroundings of a vessel body, an image processor that generates a bird's-eye view image based on images captured by the imager, a display provided in the vessel body and that displays the bird's-eye view image, and a controller. The controller is configured or programmed to perform a control to switch an image displayed on the display from the bird's-eye view image to an object image obtained by imaging in a direction toward an object from the vessel body based on object information.

Abstract: A marine vessel includes a hull including a cabin, an imager that images a field-of-view shielded region, which is a region in which a marine vessel operator's field of view is obstructed when the marine vessel operator located on an operation seat provided inside the cabin looks around an outside of the marine vessel in a horizontal direction, and a display provided at a position visible from the operation seat and that displays a field-of-view complement image, which is an image of the field-of-view shielded region captured by the imager.

Abstract: An imaging system for a ship includes cameras mounted on the ship and spaced apart at a predetermined interval, and a controller that combines peripheral images of the ship captured by the respective cameras to create a simulated bird's eye image. Adjacent ones of the cameras are located at positions and angles so that the peripheral images include a common portion of the ship. The controller performs a calibration process to adjust areas of the peripheral images to be used for the bird's eye image based on a calibration index located at a portion of the ship and included in the common peripheral images.

Abstract: An imaging device that reduces differences between a bird's eye image and an actually measured distance includes imaging cameras mounted on a ship to capture peripheral images of the ship and combines the peripheral images captured by the imaging cameras to create the bird's eye image as a composite image. The imaging device includes an auxiliary camera adjacent to at least one of the imaging cameras, and a distance calculator that calculates a distance in a lateral direction using the auxiliary camera and the at least one of the imaging cameras adjacent to the auxiliary camera.

Abstract: A server system includes a communicator, a storage, and a controller. The controller is configured or programmed to receive positional information of a watercraft that a user of a wireless communication terminal is aboard and propulsion device information from the wireless communication terminal through the communicator. The propulsion device information indicates a type of a propulsion device on the watercraft. The controller creates cruise trajectory information and stores the created cruise trajectory information in the storage based on the positional information of the watercraft in association with the type of the propulsion device on the watercraft. The controller determines a frequency at which cruise trajectories of the watercraft match the cruise trajectories based on the cruise trajectory information in the storage. The controller creates cruise route information in association with the type of the propulsion device on the watercraft.

Abstract: A watercraft includes a plurality of devices, a central controller, and a display device. The central controller is programmed to execute centralized control of the devices. The display device includes a touch panel function. The display device is configured to communicate with the central controller, and to display information regarding watercraft in a Graphical User Interface (GUI) format.

Abstract: An engine system for a vessel propulsion device includes an engine including an intake amount adjusting unit and an ignition plug, and configured to generate a drive force for the vessel propulsion device. The engine system includes an ignition timing control unit, a knocking detecting unit, a knocking retard control unit that retards the ignition timing of the ignition plug by a unit retard amount when the knocking detecting unit detects knocking, an abnormality judging unit that, when a state where the knocking detecting unit detects knocking at intervals within a predetermined time continues, judges that an abnormality has occurred based on a continued state of knocking detection, and an intake amount limiting unit that limits the intake amount of the engine based on judgment of an abnormality made by the abnormality judging unit.

Abstract: A jet propelled watercraft includes a vessel body, a jet propulsion mechanism, a bucket, and a controller. The jet propulsion mechanism is configured to propel the vessel body. The controller is configured and programmed to control a thrust of the jet propulsion mechanism to propel the vessel body. The bucket is configured to move to a retracted position spaced away from the jet of water ejected from the jet propulsion mechanism and a jet receiving position to receive the jet of water ejected from the jet propulsion mechanism. The controller is configured and programmed to change an increase rate of the thrust in accordance with a forward speed of the vessel body until the thrust is increased to a predetermined value after the bucket has been moved from the retracted position to the jet receiving position.

Abstract: A watercraft includes a vessel body, a propulsion mechanism, an engine, a shift operating unit, a vessel body state determining unit, and an engine controlling unit. The propulsion mechanism is switched among a forward thrust state to forwardly move the vessel body, a rearward thrust state to rearwardly move the vessel body, and a neutral state to maintain the vessel body in a stationary state. The shift operating unit is configured to move to a forward thrust position, a rearward thrust position, and a neutral position. The vessel body state determining unit is programmed and configured to determine whether or not the vessel body is in the stationary state. The engine controlling unit is programmed and configured to stop the engine when the shift operating unit is located in the neutral position and the vessel body state determining unit determines that the vessel body is in the stationary state.

Abstract: A water jet propulsion watercraft includes an exhaust passage, a catalyst member, a water lock, a first oxygen sensor, and a second oxygen sensor. The exhaust passage guides exhaust gas from an engine to an exterior of a hull of the watercraft. The catalyst member is arranged inside the exhaust passage. The water lock is arranged in the exhaust passage downstream of the catalyst member. The first oxygen sensor is arranged in the exhaust passage upstream of the catalyst member. The second oxygen sensor is arranged in the exhaust passage at a position downstream of the catalyst member and upstream of the water lock.

Abstract: In a watercraft, an engine rotational speed sensor detects a rotational speed of an engine. A determining section determines if a prescribed execution condition indicating that a hull body is moving is satisfied. A filter processing section applies a filter process to the engine rotational speed detected by the engine speed sensor to acquire a filtered engine rotational speed. A control section executes a maximum speed limiting control to limit a maximum speed of the watercraft when the prescribed execution condition is satisfied and the filtered engine rotational speed is larger than a prescribed rotational speed threshold value.