JPH04255Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an autopilot device that uses a ship position measuring device such as Loran, Omega or NNSS to ensure that the ship always navigates on the planned route.

This type of conventional autopilot device is connected to a gyro compass to control the steering gear so that the heading of the ship matches a preset heading, and the display shows the heading and set heading. It was intended to display. In such a device,
For example, even if a ship deviates from its planned course due to external forces such as wind and waves, currents, etc., it is not possible to know this, and as a result, there are inconveniences such as the inability to accurately reach the planned destination.

Additionally, devices were known that superimposed nautical chart information with own ship position information and displayed it on a graphic display, etc., but these only displayed the relative positional relationship between own ship position and nautical chart information. However, there was no function to automatically control the rudder and return the ship to the planned route if the ship's position deviated from the planned route and attempted to enter dangerous waters. It became necessary to monitor the gap between the ship's position and the planned course, and if a gap occurred, operate the rudder to return it to the planned course.

The present invention eliminates these drawbacks by combining a ship's position measuring device separately from the azimuth measuring compass, and displays the own ship's position obtained from the ship's position measuring device and the preset route on the same screen. By displaying the graphic above, it is possible to read at a glance the relationship between own ship's position and navigation information such as the scheduled route, allowing automatic navigation and easy monitoring of whether it is being carried out safely. The present invention provides an autopilot device for ships.

The drawing shows one embodiment of the present invention, in which 1 is a ship position measuring device such as Loran, Omega or NNSS, 2 is a gyro compass, and 3 is a ship position measuring device 1.
and an arithmetic controller into which the respective outputs of the gyro compass 2 are input, 4 is a graphic display, and 5 is a display screen of the graphic display 4. On the display screen 5, A is the starting point and B is the destination. The point, the line segment shown by a solid line is the planned route, C is the own ship's position, and the line segment shown by a dotted line is the track of the own ship.
6 is a steering gear.

Next, to describe the operation of this embodiment, the arithmetic controller 3 transmits the own ship's position sent from the ship position measuring device 1 that measures the own ship's position to the arithmetic controller 3 using appropriate means. Based on the scheduled route determined from the preset departure point A and the destination point B, the distance deviation d between own ship position C and the scheduled route
is calculated, and the steering gear 6 is controlled to direct the ship's heading sent from the gyro compass 2 toward the planned course, that is, to correct deviations from the planned course.

In addition, on the display screen 5 of the graphic display 4, the departure point A, destination point B, scheduled route, and own ship position C sent from the arithmetic controller 3 are displayed graphically, and the movement of the own ship position is also displayed. The resulting wake is also displayed.

As described above, according to the present invention, the own ship's position and the planned route are graphically displayed on the same screen, so the situation in which the own ship is navigating along the scheduled route under autopilot control can be seen at a glance. This greatly contributes to the safety of navigation.

[Brief explanation of drawings]

The drawing is a block circuit diagram showing an embodiment of the present invention. 1... Ship position measuring device, 2... Gyro compass, 3... Arithmetic controller, 4... Graphic display, 5... Display screen, 6... Steering gear, A... Starting point, B... Destination point, C...Own ship position,...
...Planned route, ...Own ship's track.

Claims (1)

[Scope of claim for utility model registration] (1) A ship position measuring device for measuring own ship position;
a display device that graphically displays the ship's position and the planned route; a steering device that operates the ship's rudder;
Calculating a distance deviation between the ship's own position and the scheduled route, correcting the ship's heading sent from a gyroscope, and controlling the steering gear to correct the deviation from the scheduled route. What is claimed is: 1. A marine autopilot device, characterized in that it is equipped with a controller and enables a ship to navigate along a scheduled route. (2) A marine autopilot device according to claim (1), wherein the ship position measuring device is Loran, Omega, or NNSS.