Techniques are disclosed for systems and methods to provide speed through medium (STM) sensor calibration for mobile structures. An STM sensor calibration system includes a logic device configured to communicate with an STM sensor, an orientation sensor, and a position sensor for a mobile structure. The logic device determines a time series of estimated STM velocities and a time series of speed over ground (SOG) velocities during a dynamic maneuver of the mobile structure. The logic device determines an STM sensor calibration associated with the STM sensor based, at least in part, on the estimated STM velocities and the SOG velocities.

A ship maneuver supporting device capable of displaying a collision risk zone which matches navigation feel of a ship operator with reduced calculation load, is provided. The ship maneuver supporting device 1 includes processing circuitry (11, 21, 31, 41). The processing circuitry calculates a collision risk value for determining whether a collision risk zone that is a zone where a possibility of a collision between a first ship and a second ship will occur in the future is high is to be displayed, based on a separating distance between the position of the second ship estimated at a plurality of future time points and the position of the first ship estimated corresponding thereto, in consideration of a physical size of at least one of the first ship and the second ship. Further, the processing circuitry generate display data for displaying the collision risk zone at the estimated position of the second ship, based on the determination using the collision risk value.

A method, system and product comprising: obtaining location-reporting signals of a vessel indicating that the vessel was located at a first geographical position prior to a shutdown event and at a second geographical position after the shutdown event; determining a distance between the first and second geographical positions; determining an estimated time to travel the distance based on the location-reporting signals; comparing the estimated time to the duration of the shutdown event, to determine whether the vessel had sufficient time to perform a dark activity that is associated with a maritime event; generating a potential travel path from the first geographical position to the second geographical position, wherein the potential travel path comprises the maritime event; obtaining images that correspond to the duration of the shutdown event and to the potential travel path; and verifying that the maritime event occurred based on an analysis of the images.

Provided is a chart display device for partially confirming a chart. In an example, the chart display device includes a display configured to display the chart on a screen, and detect a touched position of the screen. The chart display device includes processing circuitry configured to determine whether an operation auxiliary tool having detected elements to be detected based on the touched position is placed on the screen, specify a corresponding area corresponding to the operation auxiliary tool in the chart based on the position of the detected elements, and receive an operation for the corresponding area in the chart.

A predicted course display device for a movable body includes an interface module to receive a planned route of the movable body, a position measurement module to detect a current position of the movable body, a geographical information selection module to determine geographic information of a region surrounding the movable body that is to be displayed on a display screen, a tidal current information reception module to receive tidal current information of the region surrounding the movable body, a course prediction module to predict a course of the movable body based on the tidal current information, and a course information generation module to generate display information for showing the planned route and the predicted course corresponding to a specific position on the display screen.

A predicted course display device for a movable body includes an interface module to receive a planned route of the movable body, a position measurement module to detect a current position of the movable body, a geographical information selection module to determine geographic information of a region surrounding the movable body that is to be displayed on a display screen, a tidal current information reception module to receive tidal current information of the region surrounding the movable body, a course prediction module to predict a course of the movable body based on the tidal current information, and a course information generation module to generate display information for showing the planned route and the predicted course corresponding to a specific position on the display screen.

Systems and methods for augmented-reality-based marine navigation. An electronic controller plots a navigational route between a current geospatial position of a host vessel and a target destination of the host vessel. The navigational route is plotted as a series of waypoints. The electronic controller receives an electronic transmission from at least one nearby ship indicative of a current position of the at least one nearby ship (e.g, an MS transmission) and updates the navigational route based at least in part on the received electronic transmission. A graphical representation of the updated navigational route and a graphical indication of the current position of the at least one nearby ship (e.g., a conformal overlay of the at least one nearby ship) are then displayed on a head-worn augmented reality display device.

A journey through a waterway along which a sea-faring vessel manually piloted is identified and stored. A second vessel is later autonomously navigated along the same journey based on the stored data.

A navigation device is provided, which may include an acquiring module and a route creating module. The acquiring module may acquire at least a departing location, a destination location and nautical chart information to be used for creating a traveling route for a ship. When a given navigable area is divided into a first navigable area and a second navigable area based on a given condition, the route creating module may create a route being shorter in total distance and taking priority in passing the first navigable area than the second navigable area, based on the departing location, the destination location, and the nautical chart information.

A system for guiding a boat, which includes the boat and a remote server. The boat includes a central unit linked to a user interface, a receiver for receiving data transmitted by at least one electronic tag affixed to a device of the boat and to a radio device for bidirectional communication with the remote server. The central unit transmits information resulting from the data transmitted by the tags, the current position and the route plan of the boat via the radio device to the server, and receives route plan modification data, which are displayed on the user interface, from this server. In this way, the operator of the boat is able to gain knowledge of the movement of nearby craft and of possible collision risks. Further, the boat may include on-board connected objects that communicate with the central unit in order to determine whether devices are missing on board.