JPH0692240B2 - Motion direction display method for dual rudder system - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a two-rudder system motion direction display method for displaying the rudder position and the motion direction of a ship in a ship having two rudders.

[0002]

2. Description of the Related Art Conventionally, by combining the rotational positions of two high lift rudders, the propeller wake is controlled while the propeller is operating in the forward direction, and thrust is applied to the hull over the entire 360 ° direction. A two-rudder system is known that can do this.

These two rudders are steered by one steering lever 2 of a controller 1 called a joystick as shown in FIG. In this case, as shown in FIG. 4, the rotational position of each rudder is determined as the steering mode corresponding to all points within the movement range of the steering lever 2. Then, in order to inform which rotational position each of the two rudders is in relation to the position of the control lever 2, the display device 3 as shown in FIG. 5 is based on the detection from the actual rudder rotation angle. The rotated positions of the two rudders 4 are displayed on the screen.

[0004]

However, in the method of displaying the rotational positions of the two rudders as described above, when the steering lever is placed at a certain position, the actual rotation of the two rudders is correspondingly changed. Only the position is shown, and there is no relationship what combination of the positions of the two rudders gives the hull a direction of movement, so the pilot is in control of each of the two rudder positions. There was a problem that we had to keep our mind in mind in which direction the hull would move in relation to the combination, and in particular, in the case of emergency piloting, we had to make a quick judgment in our mind. .

The present invention is to solve the above-mentioned problems, and to which position the two rudders rotate correspondingly when the operator puts the steering lever at a certain position, and in that state. An object of the present invention is to provide a movement direction display method for a two-rudder system that displays in what direction a hull moves in a manner that can be visually recognized at a glance.

[0006]

In order to solve the above-mentioned problems, the method for displaying the movement direction for a two-rudder system according to the present invention is such that the respective rotational positions of the two rudders corresponding to the respective positions of the control levers, The direction of movement of the hull caused by the combination of the positions of the two rudders is set in advance in the controller as each maneuvering mode, and the respective rotational positions of the two rudders and its corresponding positions are set in the controller. An image image showing the direction of the motion of the hull caused by the combination of the positions of the two rudders is set in advance in the display device as each control mode display image, and each control mode display image is set in accordance with each control lever position. The configuration is shown on the display surface of the display device.

[0007]

With the above-described structure, when the operator moves the control lever to a certain control mode position, the two rudders are rotated by the steering gear to the positions predetermined for the respective control modes. Then, when the rudder reaches a predetermined rotational position, a signal is emitted, and a steering mode display image corresponding to the steering mode is displayed on the display surface of the display device.

This allows the operator to easily visually perceive both the direction of movement of the hull in the commanded maneuvering mode and the position to which the two rudders have rotated. Therefore, it is not necessary to consider the relationship between the combination of the positions of the two rudders and the direction of the movement of the hull caused thereby, and the burden on the operator can be greatly reduced. In particular, in the case of emergency operation, it is easy to operate the ship without error.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. As shown in FIG. 3, the respective rotational positions of the two rudders corresponding to the respective positions of the control lever 2 and the direction of movement of the hull caused by the combination of the positions of the two rudders are set in advance as the respective control modes. Set it in the controller 1.
The operation modes are "forward straight ahead", "forward forward rightward turn", "forward forward leftward turn", "on the spot stationary (hovering)", "the right spot right turn", "the right spot left turn", "reverse straight forward", There are 9 modes of "reverse right turn" and "reverse left turn".

On the other hand, as shown in FIG. 1, the display device 11 is provided with a grid-like display surface having nine squares, and two squares are provided in advance for each square corresponding to each control mode in the controller 1. Image images such as arrows indicating the rotational position of each rudder and the direction of movement of the hull caused by the combination of the positions of the two rudders are displayed in advance in the respective operation mode display images 12a-12.
Print as i.

An indicator lamp is provided for each square (each control mode). When the control lever 2 is moved to the control mode position, this indicator light is turned on, for example, in yellow, and when the two rudders are rotated to a predetermined position, the signal from the actual steering angle is used. , For example, change to blue lighting. In practice, since the moving distance of the control lever 2 and the rotation angle of the rudder are in a proportional relationship, the indicator light should be turned on slightly before the final arrival position of the control lever 2 and the rudder (for example, an angle of 5 degrees). Light from the point. (However, for the "in-situ turn" position, the light is turned on in a range between the slightly front point and the slightly overshoot point). Alternatively, the lighting may be switched at an intermediate point between two adjacent operation modes, and in this case, one of the operation modes is always lit.

The operation of the above structure will be described below.
When the pilot moves the control lever 2 of the controller 1 to a certain control mode position, the display device 11 first indicates that the control mode is instructed, so that the control mode display images 12a to 12c corresponding to the control mode are displayed. At that portion in 12i, for example, a yellow lighting display is displayed. Next, each of the two rudders is rotated by the steering gear to a position predetermined for that steering mode, and when a predetermined rotation position is reached, a signal is emitted and the rudder is moved to the commanded position. The lighting display changes from yellow to blue lighting, for example.

This allows the operator to easily visually perceive both the direction of movement of the hull in the commanded maneuvering mode and the position to which the two rudders have rotated. Therefore, it is not necessary to consider the relationship between the combination of the positions of the two rudders and the direction of the movement of the hull caused thereby, and the burden on the operator can be greatly reduced. In particular, in the case of emergency operation, it is easy to operate the ship without error.

It should be noted that, in the conventional system, the forward and backward movements of the ship are recorded, and this recording was recorded by the signal from the forward and backward switching of the propeller, which is the object of the present invention. In the single rudder system,
In all maneuvering modes, the propeller remains in forward operation, so the forward and reverse movements of the ship should be recorded by signals from the "forward mode" and "reverse mode" of the ship, and the recording device should be a display device. 11 can be incorporated.

The operation mode display images 12a to 12i may be those as shown in FIG. 2, for example, and the configuration of the display device 11 is not limited to the present embodiment, and the display of the display device, the electronic bulletin board device, or the like. It is also possible to use means.

[0016]

As described above, according to the present invention, the operator can easily visually recognize both the motion direction of the hull in the commanded maneuvering mode and the position where the two rudders have rotated. Since it can be perceived, it is not necessary to think about the relationship between the combination of the positions of the two rudders and the direction of the motion of the hull caused thereby, and the burden on the operator can be greatly reduced. In particular, when an emergency operation is needed, it is easy to operate the ship without error, and it has excellent effects.

[Brief description of drawings]

FIG. 1 is a conceptual diagram of a display device according to an embodiment of the present invention.

FIG. 2 is a conceptual diagram of a display device according to another embodiment of the present invention.

FIG. 3 is a conceptual diagram of a control lever and a controller.

FIG. 4 is a conceptual diagram showing the relationship between each steering mode and the position of the rudder.

FIG. 5 is a conceptual diagram of a conventional display device.

[Explanation of symbols]

 11 display devices 12a to 12i control mode display image

Claims (1)

[Claims] 1. The controller sets beforehand the respective rotational positions of the two rudders corresponding to the respective positions of the control lever and the direction of movement of the hull caused by the combination of the positions of the two rudders, as the respective control modes. In advance, an image image showing the rotational position of each of the two rudders and the direction of movement of the hull caused by the combination of the positions of the two rudders is displayed in advance in each maneuvering mode corresponding to each maneuvering mode in the controller. A moving direction display method for a two-rudder system, wherein each steering mode display image is set on the display device as an image, and each steering mode display image is displayed on the display surface of the display device according to each position of the steering lever.