Abstract: A plotter device measures movement distance of a moving body along with other device belonging to the same network, in which only of the devices belonging to the same network functions as a master, and a device other than the master functions as a slave. This plotter device includes a measurement component, a communication component, and a calculator. The measurement component adds the movement distance while the plotter device is functioning as the master to the master movement distance of the plotter device, and does not add the movement distance while the plotter device is functioning as the slave to the master movement distance of the plotter device.

Abstract: A plotter device measures movement distance of a moving body along with other device belonging to the same network, in which only of the devices belonging to the same network functions as a master, and a device other than the master functions as a slave. This plotter device includes a measurement component, a communication component, and a calculator. The measurement component adds the movement distance while the plotter device is functioning as the master to the master movement distance of the plotter device, and does not add the movement distance while the plotter device is functioning as the slave to the master movement distance of the plotter device.

Abstract: Embodiments related to controlling one or more controllable marine electronics devices are provided. One example embodiment provides a remote control device comprising a touch-sensitive display. The remote control device is configured to receive device information from each of the one or more controllable marine electronics devices via the computer network, and display a selection graphical user interface (GUI) including a plurality of graphical selectors each associated with a respective one of the controllable marine electronics devices. The remote control device is further configured to display a remote control user interface for a target controllable marine electronics device corresponding to a selected graphical selector on the touch sensitive display.

Abstract: Embodiments related to controlling one or more controllable marine electronics devices are provided. One example embodiment provides a remote control device comprising a touch-sensitive display. The remote control device is configured to receive device information from each of the one or more controllable marine electronics devices via the computer network, and display a selection graphical user interface (GUI) including a plurality of graphical selectors each associated with a respective one of the controllable marine electronics devices. The remote control device is further configured to display a remote control user interface for a target controllable marine electronics device corresponding to a selected graphical selector on the touch sensitive display.

Abstract: An underwater detection apparatus for detecting a target by transmitting and receiving an ultrasound signal is provided. The apparatus includes a replica memory module for storing the typical amplitude evolution of a seawall echo during a predetermined time period as a template-replica beforehand, a correlator module for determining a correlation between the amplitude evolution of an echo signal reflected from the target and the template-replica, a seawall detector module for detecting a seawall position based on the correlation, and a seawall display processor module for displaying the seawall on its position in an indicator.

Abstract: An underwater detection apparatus for detecting a target by transmitting and receiving an ultrasound signal is provided. The apparatus includes a replica memory module for storing the typical amplitude evolution of a seawall echo during a predetermined time period as a template-replica beforehand, a correlator module for determining a correlation between the amplitude evolution of an echo signal reflected from the target and the template-replica, a seawall detector module for detecting a seawall position based on the correlation, and a seawall display processor module for displaying the seawall on its position in an indicator.